Hi,
Steven here from Germany.
My buddy recently built a 165mm crankshaft pulley (stock size: 155mm) for me from a good used mb pulley because I allready have a 65mm supercharger pulley on my SLK32 and do not want to change to a single 185mm crankshaft pulley. 165 x 65 stacked equals a 188 mm single crankshaft pulley but do not overrev idler and pump pulleys. So it gets even bigger .
I haven`t tested the pulley jet because it`s winter here in Germany so i cannot confirm if it will work fine or not.
We are no vendors but we are thinking of building a bunch of 165mm pulleys for you 65mm sc pulley guys.

Please pm when interested.

Thanks
Steven