If you don't care about heat, just pull your hoses and run a barb fitting between the 2 and unplug your pump. That is what you do when you have a leak anyway. Wiring a local switch to behind the seat wouldn't be hard. Just run it inline with the pump for on off. Running to the dash would be harder of course. You can also buy the pump housing off amazon for under $100. Don't ask for the link use google search or amazon for sureflo and off brand replacements will come up there are aftermarket.