I found some epoxy Filler called 3805 Adhesive by "Loctite" It was $20.00 its heat resistant to 175 c , fuel proof too .. its stats are a little better than the Devcon which i found also.. It was only $20.00 too. I think that $194.00 price is either a miss print or for a real big tube of the stuff...
MassiveMods is a place here in Sydney Australia, its in 12/13 Purkis st Camperdown, Its my Shop !! lol
Here is a club i race on road buggy at
http://www.pdnracing.org.au/