I haven't yet seen the Mamiya TLRs mentioned in this thread. You can sometimes find a body and lens for very little money.
I found a Mamiya C220 with 65mm lens locally for $70. It is functional, but very ugly. Needs new foam seals on the back (easy DIY), there is a big dent in the taking lens filter ring, and the shutter runs a little slow (it's now consistently a half step slow, was sticky at first).
The shutters on the Mamiya TLR lenses look easy to DIY clean and lube, there are videos on YouTube that show the procedure. I haven't done mine yet, I just compensate for the half step overexposure. And if you screw up, lenses with slow/sticky shutters are cheap on the auction site so you can try again.