You can get the job done by 5500 rpm using a turbocharger with a compressor inducer between 57mm and 60mm.
15 psi of boost will be sufficient.
An Aussiespeed intake manifold would allow you to use an EFI throttle body like a Holley Super Sniper.
I don't have any intake manifold suggestions if you want to use MultiPort Fuel Injection.
You can use a shorty exhaust header with a "Y" pipe to supply exhaust to the turbocharger.
I'm sure you have some ideas?