First of all great mod!
I really like the idea, this makes outpost creation much more seamless and enjoyable.
I would balance the costs and attributes a bit of the trucks to align more with game mechanics and usability.
My recommendations:

Artirelly truck:
- Nerf its range because it kind-of makes the Artirelly wagon obsolete. Which is not fun. I would make half range of Artirelly wagon
- Realign its costs a bit turret and wagon can be build separetly; this could be too: Heavy truck + your stuff + instead of wagon just the turret.

Logistic truck:
- Recipe should contain the chests as ingredients.
- If its 10 accumulator capacity then it should cost 10 accumulator, not 5 batteries.
- Regarding the charing power if its power is 2 solar panels, then it runs easily out of energy. Its a bit difficult situation, maybe it could use a portable fission reactor. But as the truck contains the graphics; it could cost more solar panels and do energy output accordingly. Like 10 solar panel energy. I think people can live with that aspect (that it does not fit on the back of the truck).
- Also I don't know whether it can be connected to the power grid through substations? That would be neat too.
As you intend to allow it after Logistic system research this truck is quite overpowered in that phase of the game. Basically you just need few and you use them as mobile roboports. Which solves a lot of logistical and thinking problems. Especially when expanding. So making it harder to build is fair.
- I would also remove its 80-slot trunk. Makes the original heav truck obsolete. The 5 chests already provides 5 * 48 slots.

Otherwise I have to emphasize this is awesome, that's why I am so picky with it. I always missed from vanilla cool expanding capabilities to create outposts. With the tanker you can even build flamethrower turrets and supply them on the fly without any hassle of oil pipes and sources. Which I missed a lot too from the basegame.

Thanks a lot for the feedback, it made a lot of sense, so version 1.1.0 is out with your suggestions:

Artillery Truck
- Range reduced to half of the artillery wagon's (112 instead of 448), so the wagon stays the long-range option.
- The recipe takes an artillery turret instead of the wagon.

Logistic Truck
- The recipe now includes what it actually carries: the five logistic chests, 10 solar panels and 10 accumulators (instead of 2 solar panels and 5 batteries).
- It also charges from the power grid when parked within reach of a power pole.
- About the storage: the logistic chests on the truck only have 5 slots each, not 48, but you were right that the trunk was too big. It went down from 80 to 20 slots, so the Heavy Truck (160) stays the one for bulk cargo.

Let me know how it feels after the changes!

I think the recipe needs to be tweaked further... right now:

{type = "item", name = "heavy-truck", amount = 1},
{type = "item", name = "roboport", amount = 1},
{type = "item", name = "passive-provider-chest", amount = 1},
{type = "item", name = "active-provider-chest", amount = 1},
{type = "item", name = "storage-chest", amount = 1},
{type = "item", name = "requester-chest", amount = 1},
{type = "item", name = "buffer-chest", amount = 1},
{type = "item", name = "solar-panel", amount = 10},     -- sus placas dan lo que 10 del juego (600 kW)
{type = "item", name = "accumulator", amount = 10},     -- su batería guarda lo que 10 acumuladores
{type = "item", name = "advanced-circuit", amount = 5},
{type = "item", name = "electronic-circuit", amount = 15}

Instead of the logistic chests, just use a x5 steel chests... you already added the remaining cost for 5 logistic chests with 5 red circuits and 15 green circuits, so:

{type = "item", name = "heavy-truck", amount = 1},
{type = "item", name = "roboport", amount = 1},
{type = "item", name = "steel-chest", amount = 5},
{type = "item", name = "solar-panel", amount = 10}, -- sus placas dan lo que 10 del juego (600 kW)
{type = "item", name = "accumulator", amount = 10}, -- su batería guarda lo que 10 acumuladores
{type = "item", name = "advanced-circuit", amount = 5},
{type = "item", name = "electronic-circuit", amount = 15}

Yeah, you are right. I was paying for the chests twice with those circuits. Switched it to 5 steel chests like you said, it'll be in the next update (1.1.1). Also fixed a weird dark frame on the logistic truck's tracks while I was at it. Thanks man!