Oh, it was entirely just me modding to my tastes and performance goals. Where you seemed to have scaled up a ship, I broke those larger pieces into smaller ones, sticking with a 0.5 scale on the block sizes (if that makes sense) so i was able to cram more shields, generators, etc inside. I also made some overall changes like lengthening hulls and the like. here's some screenies.
as you can see, they got a wee bit bigger in some cases. :-D
edit: I no longer have the xml's for the modified ships. In the process of re-installing Avorion (for no reason apparently) I managed to lsoe them. :-(