I checked with some local buinesses and today found a plating company that will dip motorcycle tanks in acid to strip out the inside rust. I'd been comparing radiator shop prices for vatting prices when I dropped by the place.
When asked how much he would charge to do it, the guy said he wouldn't even charge me (wow!). I told him I have a couple tanks and I will be definitely be giving him return business, so if he gives me a decent price per tank I am happy.
I'll report back with results. BTW, if anyone lives in the Garland or Rockwall (Texas) area, pm me and I'll give you contact info.
