Glad to hear from you again! Sorry for your problems too!! Never heard of the wire mesh in walls so cant help on that one! all of the newer walls here are drywall stuff. Old ones were plaster over wood lath.
About the only way to find the studs would to start drilling small test holes til you find 1 then measure over from that to locate the next one.--- after you are done fill the test holes with waterproof calk.
dont hook to the mesh itself,---go for the studs! The mesh might tear out and things would go south REAL fast!
If the exterior is brick, you could drill all the way thru and run big all thread rods in and hook to them.---ya thats extreem but a possible way to get your handles exactly where you need them.
Now as to your cub,---do you mean Farmall cub?? I have 6 or more of them here! LOL!

"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."