If any will do, I have a white Alps board I can harvest for you. I'm not a fan of white Alps, so it's no biggie. I think I paid $25 for the board, I need to double check. Price would be what I paid +shipping. I can either desolder them or send the whole board. The board works perfectly aside from an inconsistent right arrow key, which might be solved by cleaning the switch.
If that sounds good, PM me and we can work out the details.