I am considering retiring this mod, so unless there is a huge outcry, there probably won't be any further updates. There are several reasons for this:
The Behemoth Aerospace Engineering - Large Parts mod doesn't seem to have a huge following.
NecroBones already covers most of the area of this mod in his SpaceY Lifters + Extended mods (up to 7.5m parts).
If you really want oversized parts, you can just use TweakScale (in your case combined with Nertea's Near Future Solar mod).
To my knowledge, the only thing in BAE-LP that doesn't work in KSP 1.1 is the landing legs. Everything else in the current version (1.3.5) should still be functional.
However, if any of you wish to convince me to NOT retire BAE-LP, don't hesitate to post your opinions. If I get enough responses, I might reconsider.