I did look at Bob's & Scott's which I really liked. I bought a couple of "better" quality compasses from Dive Gear Express that I can fabricate into a mount like theirs. But first I bought one of these that I was going to try out and see how it worked...my old eyes can see this compass much better.
http://www.leisurepro.com/p-setsrc/seattle-sports-sear-rover-deck-compass
For $30 it is worth experimenting with.
http://www.leisurepro.com/p-setsrc/seattle-sports-sear-rover-deck-compass
For $30 it is worth experimenting with.