If Im understanding you correctly, you are working your machines as a sub with no insurance of you own? Not a good idea. Tne primes insurance only covers the prime not you! If you hit a gas main and blow up a block, its on you. And if you are not incorporated, it is on you personally and everything you own and into the future will be gone.
This is CABL.com posting #379522. Tiny Link: cabl.co/mbKTu