Bus seems to start good, Travis is right about the shifting. I think if you took out the abused Empi shifter and rebuilt a bus shifter and put it in, you'd cure the problem.
The rust around the window is a little worse than most, but they make patch pannels.
Clutch engauges really really low to the floor, will need to be adjusted or replaced.
If you are not scared of welding, you could have a nie bus for little dough.
You could just roll it as is, and repair later....
Go for it, It'll need the creative Car Craft inserts or some metal around the engine though.
KC