It would depend how exact the stubs are but you can get compression fittings to convert to an or jic fittings
https://www.ebay.co.uk/itm/AN-8-BLAC...4AAOSwxp9W31I8
https://www.ebay.co.uk/itm/AN-6-BLAC...4AAOSwxp9W31I8
https://www.ebay.co.uk/itm/AN-10-BLA...cAAOSwmmxW3xb0
Also depending on your fuel tank, is it sumped and baffled ? If not you will want a lift pump to swirl pot to pump.
1/2 out from the tank is ideal. 5/8 even. The 044 has an m18x1.5 inlet. 3/8 into the pump can make it scream as it cavitates. 5/16 will kill it in double quick time.
From the out let of the pump to the fuel rail an6 is plenty.
I am doing mine at the moment and I don’t fancy changing the tank much either.