Any tips on matching SL UVs onto a custom mesh body I made?

[Tovaphina]

Ok, so I have split up the mesh, and TRYING to get the seams correct, not to mention mirrored, for my custom body. It uses SL/Linden Lab UVs, just like any Omega based body.

 

Unfortunately, this process is very tedious, and I can't even get passable results, let alone good or perfect results.  Trying to match up the middle of the back by splitting up the mesh. It's  a lot of clumsy trial and error, and I was wondering if someone had any idea of an easier way.

[OptimoMaximo]

A few days ago there was a similar question i answered in this thread

You may need to do some research on the tools you need thogh, as i'm not sure if Blender can handle it