Wish you'd have said that about 10 posts ago. It is IMPORTANT to understand "we aren't there." The only issues I see are these?
Dakota pumps will not be readily available forever. In another 10 years, if you need a replacement, might be touch. Might.
It will take some fabbing to install that pump in anything else except where it came from. I don't know where you'd get the pump mount in metal, does anyone repop it?
There are many generic EFI pumps available, and a little money spent might save you giant headaches in fabrication and later replacement.
How many miles is on that pump? It might fail a week after you get the car together.