Nicolas,
Suggest you just start looking at all the different tooling catalogs and see what you come up with. How to compare them is another story.
The prices run the range from say $50 to $1000 plus. You never know what's inside and just how they are made.
Example; ground end, balanced, high end bearings, hardened shafts, size of shaft and beaings, etc. Lets not forget the type chuck on the end or how the collet is made.
Kind of tough to judge the quality just on price.
Designing and making your owne is certainly an a good option.
LOL,
RICH