As much as I hate to say it since I love the LS engines, the car may be worth more with a Ford engine of some variation under the hood. Not everyone is as brand neutral as most of the folks on here seem to be.
That said, have you thought about whether Erik/Akina's blower setup could be made to fit?
I certainly have. I am positive it can be made to fit the car. My budget however, not so much.

Gotta build a house, I'm lucky the wife let me snag 5k for the car. I gotta pay off about 10k in old loan debt and then save up about 45k more for the house, so it will probably be another year until I'm ready to buy $$$ stuff like engines/transmissions/etc. Until then it's fabrication!
As far as value goes, eh, I don't care too terribly much about that, but I'm not going to put an LS1 in it just because "OMG LS1" so I figure I'll give all types a fair shake and if I can put a Ford motor in it with no downsides, I might as well do so, right?
Yes, a truck 5.0 and Boss manifold (or Cobra Jet Manifold is even better if you can find one for cheap) will be sweet. The blowers just bolt right on those Coyote engines so that is an easy swap out when the time comes.
Yeah, I think bang/buck is great and it seems like a nice platform. Plus I've always wanted to play with one.
So this is less frustrating than your RX7 build....how ?
Steve
Less frustrating? I don't know about that. I wanted a 4 seat car and I've been talking about building a classic Mustang since I was like 6-7 years old. I used most of the money from the RX7 to pay off some home equity loans to build a new house, but snagged a bit to buy this as a long term project. It's worth noting that I built an FC because I had one in the garage. I didn't seek one out for any particular reason. I wanted to go a different direction and I was getting pretty tired of dealing with the same stupid problems over and and over on the RX7, so here we go. The ability to take my wife/kid on a drive was pretty high up the list though. That and I wanted a car with A/C and P/S and it wasn't really reasonable to redesign the RX7 AGAIN for that purpose.