Does anyone see a problem with this setup? I have a BCMA sport 26 on a GP Super Stearman. I put a 1/2 inch steel spacer on both sides of the supplied standoffs. On the firewall I have a 1/16 inch thick steel plate so the spacers don't dig into the firewall. The plate is only 1/2 wide just enough to cover two bolts each(two seperate plates). The weight is not an issue. So, in order, there's engine, steel spacer, standoff, steel spacer, plate, firewall. Would this be Ok? I had it mounted this way and it feels pretty sturdy, but I took it off to break in the engine on a test stand. Any advise please...