Trouble sourcing out the correct stare. I need help and information....

[mookiex4]

I have my 65 GMC Truck in the local High school auto shop. they are using it as a project in class. They removed the dead 305 V6 and putting in a 60's Chevrolet 283 built to a 327. It was missing the bell-housing fly wheel and clutch equipment.

I picked up all of that stuff from someone local on Craigslist. I assumed everything was the same. It all bolted up fine but now I am having the following issue with sourcing a starter. The starter I bought after they said they needed one and all others I have been looking through lately are drivers side mounted. The shop teacher said I need the following which is Passenger side mounted. Can someone help me by letting me know what year and type I am looking for. I cannot for the life of me find this starter and not knowing what to ask for doesn't help much.

The one I need is a passenger side with parallel bolt pattern (straight across and parallel with bell housing parting line).

Thanks guys for your time and help.