I have a huge amount of UK GA flying around, and yet the aircraft you've chosen so far have very few overlaps with what I'm using (so, some are drop-in livery replacements). I think the last tranche added something like 49 new specific registrations. I'll guess that this is because you're are paying attention to what's already out there, which would explain it. It's much appreciated.
I've not used my sim in a while, but when I do, the environment will have changed quite a bit.
I'm hoping to post up a revised Ravenair fairly soon (but with their Cherokee 180 on a Warrior, pending a model!).