Hi Newbiekid,
I also had some difficulty and months' of waiting to get ahold of a 2x72 grinder, but it was WELL worth the time and trouble! My problem with the inexpensive 2x72s was that most models seem to have the motor shaft as the mount for the large contact wheel, so they run very fast and can't be geared down with v-belt pulleys.
Luckily, the good folks at Kalamazoo heard my pleas and broke out the blueprints to build me one of their "old-style" 2x72 models with a pulley drive, which is great after some modifications: slower motor, v-belt geared for even less grinding belt speed and more torque, reversed motor rotation, added foot button power switch, and alter the platen to move it much closer to the contact wheel. Now it's suitable for grinding titanium without burning me and my shop down!
Could barely get the grinder out of the box before starting to modify it, and the thing has dramatically expanded my blade grinding possibilities. These fellows aren't kidding about the homemade mods and gizmos they come up with in order to make knives like they want 'em!