On my previous rig (97 Winne Vectra) I had to remove the genset twice due to mice damage. It wasn't on a slide and was simply bolted through the generator frame into the angle iron attached to the RV. I used a floor jack under the generator to remove the load, unbolted the four mounting bolts and lowered it onto blocks that I had pre-staged under the generator. The power cables were wired through a junction box (similar to a house connection), the controls used an auto style connector and it had a single fuel line that needed to be removed and plugged.
Overall it was pretty easy, but you do need to be careful to balance the load because IIRC it weighted about 320 lbs. Good luck.
Lou
05 Travel Supreme Envoy