Over the years I have used two shops in the Bay Area: Roger Kraus Racing in Castro Valley
West Coast in Concord
I’m sure there are more which would work fine, these are just the ones I used. Not sure how they compare to Troy for cost.
https://www.revolutionelectronics.com/Products/Fuel_Pump.html
I have thought about trying this simple controller for my fuel pump. I like the prime feature. Works off similar concepts people were discussing here.