My certified low 11 second laptop was 50 bucks

You might be surprised by howlittle computing power is required to run DSMlink, it doesn't take much at all. Mine is a 475 mhz with 64 mb ram and windows 98. Had to bondo the cracked lid.
I would not hesitate to run a stock gasket on anything up to 30 psi, even on a stroker. Metal HGs might stand up a little better to high knock, but I would rather have a HG go than something else