I also use a New F-1, but if I already had a Nikon system, I wouldn't start building another system. It would make more sense to build the system you have, whether it's Nikon or Canon.

I suspect you're looking at an F-1N (officially the "New" F-1), not an F-1n. The F-1N has an AE Winder FN that lets you use shutter priority auto-exposure. The F-1n is an update of the original F-1 and came before the New F-1, but I don't think it had an AE Winder. I have an F-1n as a backup for my F-1N.