I'm the OP on this and after the whole discussion, here's the direction I'm leaning. First, I bought a new Wayne 3/4 HP sump pump because I needed one. Here it is:
Wayne 3/4 HP Submersible Sump Pump-CDU980E - The Home Depot It has nearly a 5 star rating and pumps with real power. Then, I plan to order this 12 volt Wayne battery backup.
Wayne 1/3 HP - 12 Volt Battery Backup Sump Pump System-ESP25 - The Home Depot It also is highly rated and will buy me the time to start the generator. Regarding the generator, my thinking, which could change, is to order a new 3 pt whole house PTO generator since I have a tractor I could leave it on over the winter or hook up quickly other times. I'm already wired for the 50 amp whole house connection so it would be a snap. I don't want a whole house auto on generator right now so this is the current (pun intended) plan.
