It seems to me if using a 65mm Nikkor is one of the things you have in mind, you want a camera with interchangeable bellows so you can use a bag bellows, and have decent movements. Looking at the 4X5 Galvin that didn't sell on eBay recently, it doesn't seem to have a Graflock style back with removable focusing panel, so it really limits the choice of roll film holders you can use (maybe some Galvins have a Graflock. I don't know about that).
I bought a 4X5 Galvin new back in the 1980s and didn't keep it long. Yes, it was light weight, but it wasn't very sturdy, and it seems the lock knobs didn't function very well. Keep in mind that was a long time ago, so someone else may disagree.
For $475 you could have a Sinar F, or Cambo, or something else with extra lens boards, a bag bellows, and an extension rail. I'm not familiar with systems other than Sinar to know which models have interchangeable bellows, but that is something to find out. With Sinar, if you were just using a 65mm lens, you could mount everything on a 6" rail and have a pretty compact camera. I remember the Galvin had a one-piece rail and wasn't very convenient to get into a bag and carry around.
Len