I won't answer the best setup for your needs and preferences but I can say that they make low pressure (5-8 psi) psi fuel pumps.

You can get really good, low-pressure fuel pumps at Summit or Jegs, and if you want something fast and cheap to test your theory, you can get a low-pressure electric fuel pump (7psi) off the shelf at Autozone or Orielly.

They will have them sitting there behind the counter.