It is a very good idea to resolder the tank! With age the solder crystallize and become brittle and rust also creeps up in the joints and splits the seams. You didn't tell where you are located so it's difficult to recommend the closest shop. But the only one that makes the job, that I know of, completely with a total tin dip of all details and use solders with different melting temperatures for reassembly is Vahan Dinihanian vahan237@gmail.com in Portland, Oregon. He also have all spare parts, makes all needed repairs and improve certain details in the tank.

Interesting, thanks for that info, Rex. Any news on costs etc ? 

Tim

I think the cost is dependent on condition so difficult to guesstimate.  I sent my tank to Vahan a couple of years ago, it was in poor condition...lots of dents but no holes and needing all new parts (e.g. bungs, mounting pieces and plates, etc.) and his estimate was quite a bit more than I had imagined so I had him send it back.  I had already split the tank and taken out the oil compartment so I'm going to (someday) re-do the tank myself.  Meanwhile, I purchased a nice new one from Juergen Mattern and I'll still be over $1000 less with a new tank compared to what it would have cost to repair.

This is not a comment on his work or his pricing, I'm sure it's very, very good and worth the cost... but restoring the tank myself was what I originally wanted to do anyway!