Brakes ideas for C20 - sanity check

[71threequarterton]

I've been lurking around here, reading up on tons of threads about brakes, been crawling under the truck inspecting and getting an idea of what I'm working with and I'm at a point where I want to buy some stuff. I want to rebuild the whole system.

I currently have 11" power booster and standard looking MC and prop valve with 3/16" lines to the front and 1/4" line to the rear along the frame.

I'm liking the Wilwood master cylinder and proportioning valve and I want to bend and flare my own NICOPP lines so here's the question: am I going to be OK with running 3/16" line to the rear?

I talked to a vendor and he said it's no problem. I think I read that somebody here has done that type of setup so what about it - does this seem like a reasonable way to go?

Thanks for any advice.