It looks like the only way for me to fix my trim / tilt problems on budget is to buy a used replacement trim / tilt unit on eBay and install it myself. Reading the SELOC manual, the removal and re-installation of the whole unit doesn't look too challenging.
However, I am confused by my options for a replacement unit. Will any FastStrike trim/tilt unit from a similar year OMC outboard fit? The information I have seen indicates that 60HP - 200HP use the same unit. Does that sound correct?