They make pumps specifically for that
IMO it will take less time to fix the TQ than to go thru the trouble of installing an E-pump, which should be installed close to the tank, and below the liquid level in it.
@Trailbeast I think, is at least one guy, that has that setup, over on FABO
I agree fully, however I have had the carb of two or three times over the years already to try and seal them up better lol. Once was just adding new "sealant" to the existing seal and the other was removing the wells and resealing them fully. I have used this pump before on a diesel with a weak injection pump, as it would lose fuel line prime over night. And fuel prime loss on a diesel is a no-start situation. Anyway, the pump was at the engine sucking fuel 12ft from the tank, and probably 18" higher than the tank too.
I bet I could mount the pump and run wiring faster than removing and tearing down the carb for a well reseal
You say the secondaries? While you may have leak down on the secondaries, I do not think that is the real problem. I saw in the other thread you say it leaks down through the secondaries in 8 hours. Most carbs fill at the top of the bowl. The primaries should not siphon down through the secondaries. Empty secondaries should have no bearing on starting. I think you may be having modern fuel evaporation issues. An electric pump is a solution to empty primaries and the starting issues they present.
So, in a Thermoquad, there is a fuel bowl on either side of the carburetor fed by one fuel inlet. The lowest point in the bowl is actually the secondary jets, and an epoxy attached "well" on each bowl. When these leak, it will drain the entire fuel bowl.
The electrical for me right now, would purely be a band-aid to help with starts after sitting a day or the likes.