After looking at that, the only thing that has going for it is a 'neat-o' unique retro look. But sounds like the EFI pod is only a fraction of what's needed. ECM and all extras are extra?
Sounds like going for a Holley EFI (has everything included, including the ECM and controller) that is a good known product is the way to go.
I think my Sniper setup including HEI distributor and O2 sensor with full harness was $1100 as of 2 years ago. Prolly $1500 now.