my guess is that you're not likely to get your money's worth. has nothing to do with whether heritage can shape a good board or not. has to do with the construction of firewire boards. to repair a board correctly, you need to reproduce the process made to construct that board. firewire uses some form of vacuum bagging and i doubt heritage (or his minions) have that set up. this site has excellent information on epoxy board repair:
http://www.boardlady.com/index.htm but this guy's active:
http://stickyfingerssurf.com/
you should contact him for the lowdown.