Read the recent thread on the epoxy foam (in thread title)...the OP got the gun I think you're talking about and mentions it.
So sounds like you're nearing the end of this, though, no, I didn't read all 17 pages! Would you do this again? How many hours would you estimate it took?
Major lessons learned to date?
I'm so depressed. No one wants to come see me. :(
Mangofy your E46!