The only difference between an EFI tank and a regular tank is that the EFI tank can fit a pump and has return provisions. The non-EFI tank only needs a pick up. No one says you have to put a pump in the EFI tank. You just have to convert it to a pick-up for your external pump. Or put the internal pump and regulate it down to the 7 psi you need.
I've done off brands that work just fine. You just need to select stuff that matches what you are building. Last build I did, I got the Summit brand pump and regulator. The pump fittings leaked, thought the pump was bad and got a replacement. The next one leaked. So I went with stuff I used with no issues before. Low end Holley. No issues with the pump after that. Got the system fired up and found the Summit regulator was all over the place. Couldn't dial it in at all. So, again, got a bargain basement Holley. Set it once and done.
