I now have three Cossy heads with following specs

A - 2WD YNO627 - V86HF 6090CA Coscast 138.8 mm no corrosion
B - 4X4 YNO643 Coscast V86HF 6090AA 138.6 mm no corrosion
C - Crate RS500 YN0627 V86HF 6090CA 138.3 mm no corrosion, needs line boring on cam tunnel.

Assuming all heads need valve guides replacing and that they pass pressure testing and hardness testing.

I want to get one head ported and put on my near 500hp engine build. Will have solid lifters, double valve springs, Mike Rainbird cam in it.
Keep one as a good spare maybe put on second block I have.
Third is the one I might sell. (yeah Im a hoarder )
I am going to get all heads reconditioned while they are being measured.

What would you do ?

Here are some pics of the heads I now have, I asked PF members to vote on what ones to use where...

Left to right, A 2WD, B 4X4, C RS500