I just adjusted the valves on my 300D, and was also suprised how many needed adjustment. I would recommend buying an extra 14 MM open ended wrench or two and spending the 15 minutes or so it takes to adapt them. You can use a bench grinder to remove some of the excess bulk form the open ended heads and to also thin them a bit. Then heat near the neck of the wrench while it is held in a bench vice with a propane torch. Leave it heating till you can see a dull glow. At this point they will be quite easy to bend to a shape that makes them much easier to work with. There are some on ebay, using a picture as a guide will help. It also makes it easier to turn the crank if you help it along by turning the pulley by hand on the power steering pump while you are turning your ratchet on the crank. You'll have to try a few different configurations of sockets and extensions so your ratchet clears the fan blades but doesn't foul the rad. On re-assembly it would probably be good practice to be sure the throttle linkage works freely before start up. Good luck.

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67 250S
72 220D
80 300D
93 K1100RS
2000 Jetta TDI