Gauge Install Questions

[RB92GT]

Hello,

I purchased a mechanical water temp. gauge from autometer, as well as the chrome thermostat housing from FMS with a 1/2 in threaded port. The sensor for the gauge interferes with the thermostat. To those of you who have done this before, what fitting am I missing that will allow the sensor to be mounted into the thermostat housing without interference.

I also have an autometer vacuum gauge. Can I hook the tubing up to the plugged port on the vacuum tree, or is there a better vacuum line off of the upper intake to tap into with a t-fitting?

Thanks for your help,
Ryan