Railyn,
You can find them on Ebay in the $30's. A S&G 6741 is a good lock to start on. Here is one with a starting bid of $0.99.
I would expect it to sell for somewhere around $25-40.
http://www.ebay.com/itm/S-G-6741-group- ... _794wt_922
There are many others like it--just search around.
The S&G Group 2 locks are the best to start on in my opinion. I have tried lots of S&Gs, LaGard, Ilco, Mosler, and a couple Diebolds and I still think S&G is the best to start on because the CPs are pretty well defined.
You can use the search terms "Sargent Greenleaf" and usually find lots of locks on Ebay. The prices vary quite a bit, but you'll find one in the range you are looking for. I've purchased them for as little as $9.99. I also use the gixen.com ebay sniper service. Works very well. Just put in your max bid and wait for the auction to end. It fires your bid seconds before the auction ends. It's also nice because if you come accross something better before the auction ends, you never actually committed to buying the first item.
I am not sure if you have the tools/resources to build your own lock stand. You can buy one but the seem pretty expensive. Are you really in Sweden? If not, I will build you one from extra materials I have on hand. It may not be the prettiest in the world, but it will work. You will have to cover the cost of me shipping it to you, but it won't cost you anything more than that....although if you are in Sweden, I'm sure you are better off finding something locally.
Good luck!
P.S. this is probably a dumb question but are you a girl? My wife, JRoe, didn't think there would be many on here!