Steve,
It looks pretty spendy for what it really is. I think a better choice would be to get a complete
oil filter relocation kit. That way you can get the filter away from the hot engine and even use a
2qt filter (they even make one that accepts
2 filters, so you could have 4 qt filtering)
The adapters are already tapped for the oil lines, so adding a guage would only require installing a tee fitting.
I've used the kit on most of my cars to increase their oil capacity and to act as a cooler.
You can usually pick up a similar kit at most auto part stores. I'm in BC for a few days and will look so I don't eat my words