I'm planning on DIY wiring install for my new 3. I have a subpanel and 200amp service. The panel is outside the garage and I need about a total 40' run. I'm a bit unsure about the wires. I'll use a 50amp breaker with a 14-50 outlet. I believe I'll use PVC conduit on the outside with 4 separate wires from the subpanel until I can pierce the wall into the garage (about 10' of conduit). I'll need some kind of junction box there I think to go through the wall into the garage. From that box I'm thinking I can use Romex inside the garage to the outlet.
Is that a good plan?
Is that a good plan?