You can't run them like that, if you do you will have the guides wore out in no time. Plus if you run the motor through a rotation and watch it will more than likely run the trunion off the back of the valve. I don't think that lash caps will fill that void. Looks like you will need a longer valve to get the right geometry. If you try and shim that mess you will run the intake off the front.
I can't believe they set the head up like that, the valves should be set up within a couple thou on valve height.
I'm not an expert just my opinion.