FYI Bubba (Jim Linder) quoted me $300 to rebuild mine. But it's in very good condition.
Also there is a NOS Grant-Spaulding on HAMB for $800 so this $350 seems to be a good price.
Edit as a second thought I would have Bubba's at least curve the NOS Distributor for my needs and no idea what he would charge so you would be approaching $1K
or the price of a true Mag etc-------- . Also consider Grant-Spaulding's and Vertex Mags are much taller than a Distributor so Air cleaner clearance could be an issue.
FERoadster
2nd edit: the one reverse rotation in the photo is a SBF marine distributor.