Today GAM once again came along & helped me, thank you very much. Also, PGC kindly loaned me 100 3.2mm clecos, thank you too, just can't have too many of those. No riveting today but we were able to eventually get the entire rear fuselage clecoed together after trialling a few different methods/starting positions. Generally I'm happy with the result with only a few lumps & bumps to be sorted prior to riveting the side & bottom skins in position but I'll be seeking PGC's opinion on a couple of details prior to doing so. The new upper ribs are, we think at this stage at least, a big improvement on the originals. The top skins will be removed again for the interior fit out, wiring, etc.