Camper jacks and landing gear hybrid

You could buy new, or look for a used one.

I looked at the stable lift option but not looking to spend more than my camper cost me. $3600. I was just hoping some handy person out there had figured out a hack to link at least two of the jacks to be raised at the same time without having to wire in new electric jack adapters. I have been thinking about the four drill type of solution but am not as versed in figuring out the particulars.

Thinking more about it.... cordless drills are pretty cheap those days, so how about getting 4 of them and wiring remote switches to single panel?
You'd have to figure out a bracket holding it from turning, but a rope holding it to jack feet should do.

Aren't electric drills electrical?
I can think about set of gears/chains/V-belts to move 4 jacks at the same time, but I don't think you will like the complexity.
5-er landing gear is having heavy shaft connecting them.
The weight and taken space is not crucial on 5-er, but TC have very low limits.

Have you taken a look at Stabilelift? https://www.stablelift.com/ It’s not manual, but it lifts more than one jack at a time.

I have the other set of hands, my wife, just not all of the time. We both can do it because I have two electric drills. But, I was just testing the waters to see if there is something I haven't seen.

Another set of hands and another wrench or drill?
That's all I can think of without fabricating some Rube Goldberg contraption.