Digital oil pressure gauge recommendations?

[locovaca]

I'm in the process of building up a "new" Ranger and am doing my second digital gauge swap. This time I'm using a set from a Cougar, which has an oil pressure gauge but it's hard wired as a dummy with no way of hooking it up to a real pressure sensor. So I'm looking for a digital oil pressure gauge. Anyone used one they would recommend? eBay has some, with sender, for $30 shipped. Seems kind of shady when the others are around $50 not including a sender.