Harris could be that sharp shooter that can come in and help space the floor in limited minutes as a freshman IMO. The added benefit of Harris would be he could be groomed to take over the PG duties if Wigginton leaves in the next 1-2 years. Haliburton will be too but due to his size he could take over NWB type role too.
The thing about a "1 year flier on a sharpshooter grad transfer" is first having one become avaliable, recruiting him, and then working that player into a stacked rotation that is set for next year. Far from a sure thing.
If a scholly opens, Harris should be the priority followed by high Major a sit out transfer or even banking the scholarship in my opinion.