Might make more sense to convert the UVs of the figure. I put the P2 Nude Woman and the P4 Nude Woman Lo to Posette's UVs using UVmapper Classic. AprilYSH remapped Posette and Steph 1 to V2.  and Dork to M2. Be neat if the old figures could be mapped even roughly to the unimesh UVs but I am not up to the task myself. I think people would pay for a miki.uvs for the V3 texture.