I guess I did a decent job on double flaring the brake lines. I found two places that are leaking. One might be due to a bad joint that I made, but the other leak was between the brake hose and a block that just needed to be tightened up some more today. Hopefully I can get the brakes bled sometime next week.
Then once my fuel sender arrives, I can put Marge back on the road. Or rip her drivetrain out. I haven't decided which I should do next.