Any chance of updating this mod to include personal roboport range and the qty of bots that they can handle?

No, unfortunately I don't seem to play factorio anymore, only updated this mod compatibility info to 0.18 recently at the request from adjacent thread.

But if you are familiar with any kind of programming at all, feel free to do it yourself, should be pretty easy.
I.e. find needed parameters in roboport item prototype (should be published on official wube github), look at lua code here for how/where to add options and patch prototype parameters, and maybe publish updated/maintained copy of the mod, which I can link to and deprecate this one.