Too many engine choices!

I vote for putting the 340 in the rag top, the DCOEs or twin Offy on the wagon, and the SUs out to pasture. (Had some experience in the past trying to sync SUs on Healy 3000, MGB, and Jaguar. Very time consuming, especially if the internals are old. Ugh! On the otherhand, install the SUs on something you're selling and aid the local economic recovery (lol!).)