Sure did!
I did a variation on your method - I vac-formed a new dome, cut holes in it for the panels, cut the panels apart and glued them into the dome, then glued a sheet styrene disk into the bottom of the dome to replace the funky kit version that has that angle cut in it.
I have to say that your R2-D2 looks really great -superb work!
I tried to fix the C-3PO head - filled in the triangular hole in the face, tried to modify the eyes. It came out a little better that the stock kit, but wound up finding one of the talking C-3PO pens that Tiger made a few years back, and cut the head off the pen and used that. Looks a lot better.