Building a sump is a lot of work. Drilling a tank for a bulkhead fitting is cheap, easy, and ultimately effective. But if you still don’t want to drill it, Holley sells a complete sending unit, although pricey, that will be the simplest drop in solution.
Holley Sniper EFI 12-319 Holley EFI Fuel Tank Modules - 255 LPH - Mopar A-Body