The Scheibe SF-27 looks like a lot of glider for the money -- also there is an SF-27 website:
Die SF 27 Homepage Google translator might be needed here.
One of our members bought a Monerai for very cheap, but the thing has a nasty accident record and people are trying to talk him into something else.
Do find somebody with experience to carefully check over whatever you are thinking of buying.
I've had to back out of two purchases so far because of maintenance / import airworthiness issues.