Update
I Called SIG on Wenesday. Talked to 'Scott'. Explained my situation. He said use K2R, and all will be well. He said fuel tanks leak all the time, and it isn't the end for a plane if it gets fuel soaked. While that may be true in his world, I don't believe tanks leak all the time. Maybe he should try a Sullivan tank. I've never had one of those leak.
I'm not very happy with the way I was 'blown off' by SIG. My once beautiful 4*, is an ugly mess in the front. Not to mention the fact that I'm afraid the whole works will fall apart in mid-flight, destroying the rest of the plane, radio and my lovely Saito 100. I can't enjoy flying a plane with a sphincter factor of 9.8. I think he should've sent me a fuse and tail. I was thinking my next plane would be a SIG something extra. Not anymore. I don't think I will EVER buy SIG again.
Oh yeah, he's sending me a new tank. Big whoop. I'm not going to use something I don't trust. I should've told him what to do with his tank, but I'm a nice guy. So I didn't.
One more thing I forgot to mention. According to 'Scott', wood doesn't lose it's ability to hold glue after being fuel soaked. Maybe SIG should teach their techs a few basics.