Advice on wet bench grinders

Hi there,

I am having problems with my regular DRY bench grinder. No matter how carefully I sharp my gravers, applying only short contacts with the stone and cooling them in water quickly, the smallest ones are very difficult to sharp without softening or burning them. Now I am considering purchasing a wet grinder. 
Since the difference of price between a regular wet grinder and the finest (and expensive!) Tormek is huge, I would like to know if it's possible to use a standard model like the one in the picture.

Thanks in advance.