Hard to replace doors

[Brandon Metz]

I am putting the final touches on my property so i can purchase and house hack into a new duplex and get my current unit rent ready, however i have run into what seems like it should be a simple problem. I need to replace 4 doors but i cannot find a good deal anywhere my doorways are all 76 inches instead of 80 so buying a hollow core door and trimming it wont work and everyone is only offering custom cut which is running nearly $400 a door. Does anyone know any retailers that can do this cheaper or where too buy a decent solid slab i can cut myself. I cant seem to find anything anywhere.