Don't know how much "help" you'll get here on a CruiserRV forum...
We all love
our FunFinders...well, I do anyway
As for the "electric everything"; the only things not electric on my FunFinder, when we bought it, was the awning, stabilizers and tongue jack. I'm not big on the electric awnings, to be honest, 90% of the time we don't use the manual awning. We are "sightseers" and wouldn't leave the CG with the awning out in case of storms and by the time we get back it is early evening and the sun is low enough in the sky that, as the air cools off, we appreciate the warmth and are not looking for shade. The few times that we do use it, the manual setup is so simple and straight forward that the DW and I can have it deployed in almost the same amount of time as an electric and I don't have the electronics that can go bad. The stabilizers are manual, but, we use plastic leveler blocks under them so that they don't exceed 50% extension (they loose effectiveness after being extended more than 50%), so, it is only a few cranks with the wrench for them to be down and snug...DW takes care of that while I'm hooking up the utilities. The tongue jack...I replaced it with a power unit for far less than $2500, I paid around $179 for the power jack.
The heated underbelly? We are fair weather campers...don't like the cold and snow, never have. When it is time for those kinds of temperatures, you'll find us heading south or back home at our sticks and bricks sitting in front of the toasty woodstove
. We have done and continue to do "cool weather" camping, however, a short dip below freezing won't hurt the utilities and if it is going to be below freezing during the day, we're out of there!
So, to answer your question... We love our FunFinder and would, if we were you, purchase the Cruiser and use the $2500 to finance our next two months of traveling