Hello!
First - thanks for really awesome mods - that's what I was looking for.
I'm also using cargo ships mod and after lot of time (when I got to chemical science pack :D ) I've discovered that Oil rig from there requires Pumpjack which was replaced by few tiers (Mk-01, 02 etc), but it makes building oil rig impossible as there is no Pumpjack in game anymore. So I've edited cargo ships mod and replaced pumpjack with pumpjack-mk01 and it fixed issue for me but I believe correct solution would be to have some kind of link between pumpjack (used by other mods) and pumpjack-mk01. Is it possible to add something like that in pyanodons mods?
Have a great day!