I just got a Nikon F2A off fleabay and will flip my regular F2 with the DP-1 finder. I do however want to keep some of the lenses, actually only 2. I first thought I had to replace them but googled it and found some DIY conversions that I wasn't too keen on, I then I stumbled on a place selling conversion kits for $15. I ordered it two days ago together with some film and it turns out to be actual NOS Nikon conversion kits. It came in a sealed bag with what looks like an old faded original label. It even has mounting holes for the mouse ears. I'll dig out the small screw drivers tomorrow and see if this works.