I mentioned I would post some pictures of the PS-32 installs as replacements for PS-2 5V boards in the engine. Here are a few. So far I have installed this in a bantam Turbine engine, 4-6-0 RTR Tender, and now a Dreyfus and Unshrouded J in the engine. The fits are tighter and you need to be creative with board mounting. For the J the heat sink could mount directly to a chassis screw, so I reversed the metal mount board and used it for support of the front of the board only.
You really need to do a lot of fitting an locating to ensure the shell can go back on and that wires, which sit much higher up then the PS-2 boards have clearance and nothing that can pierce or pinch. G