Rather than paying a multisig company. Could i just have 3 remotely located keys myself. Eg safe, pc, phone
Sure, you can, but after setting up your multisig wallet, you should carefully test every aspect of using it, especially how it handles change addresses. Some coordinators
used coordinate relevant private keys or hardware wallets
if you're using any as cosigner might not handle change addresses correctly. That’s why I strongly recommend testing your chosen scheme
hope it is 2-of-3 on testnet before doing anything with real funds on main net.