Astray Blue Frame 2nd Revise: GO!

So I created the Astray Red Frame based on the PG version. My wife went to Yodobashi camera in Osaka and snatched up the Master Grade Blue frame 2nd Revise. While I enjoyed putting it together, it's definitely not anywhere near the build type of the PG. Above is the difference as illustrated by BEE-CRAFT, the designer of both plastic models. Someone seemed to have been keen on comparing the same thing using diagrams. Clearly the Red frame has a bulkier build than its incredibly slender MG counterpart and detail is different in many places. The plan is to keep the PG size and bulk while attempting to redo sections of the Blue Frame that differ "significantly" from the Red Frame. I just started on this one of course. I have to make changes circled in red, but without distorting the PG size or dimensions to that of the MG's.