I have an old-ish DeVilbiss air compressor. It's 20 gallons, 8.3SCFM@40psi, 5.8SCFM@90psi, 125psi max. It needs a new regulator, and I'm wondering if it'll be worth it to upgrade a few other things as well... If I'm measuring correctly, all the piping is 1/4" (calipers measure the pipe OD as...