Electric or mechanical water pump/ electic pump questions

Go to the Mezeire web site. Look at the accessories. There are outlet housings for AN hoses and spacers. Fit sb Chevy and BB Mopar. You can call them and tell them what you want.
A mechanical sensor doesn't need the pump on. I ran a mechanical probe into an adapter on the pass. side but there is also a pipe thread hole available on the driver's side. They have tapped holes on the bottom and sell 16AN fittings for hoses if that's what you want to run. Or fittings for a rubber hose. Do you need to run a thermostat? No ,but as pointed out you may choose to do so. I have a restriction (washer) in the t stat housing. You can always try both ways. Whatever works best for you.