Bruni GAP is cca. 80 euros (ain't worth it), in .at and in .hu.
Rohm RG96 is a very high quality gun, and the price is cca. 130-150 euros.
Therefore my "acceptance" for 149 euros for an "rG17" is realistic.
For 299 euros: practically no market for a mainly zinc gaspistol, except some dozen devoted collectors.