[Metallover]

The motor and controller would probably run pretty hot, but the whole system might work. The esc may run 5s, but there's a reason it's rated for 4s.

You should find yourself a used mmm or something along those lines... You'd be much happier.

You could check out my budget e-revo build. I put together a 4s BL e-revo for under 400 bucks. It's got pretty good conponets too.