Whatever you do, make sure those exhaust fumes are properly vented and ZERO LEAKS! Installation is one thing, 100% safety is another. Generators CAN be deadly!
Get qualified advice!
Be safe FROG friend!!
When l installed mine l ran a 2" square tubing across width of trl under gen with tabs and bolted to flange. Very simple and effective way to keep gen from falling thru or bending the thin steel. If you want l can send you a pic. Just make sure your exhaust is not coming out under a slide.