bmw e39

Hello! I have a 1999 BMW 523i E39 m-sport that I want to get new wheels for as I have to get new tires for it. I've been looking at 7Twenty Style 57s as they come in 5x120 with the 74.1mm bore that I've understood that the E39 have. The problem is that they only come in 5x120 in 18x9.5" ET20...

:(please help i have a bmw 5-series e39 r - reg cooling leakage from the inlet manifold were it bolts to the heaad:( m52 6 cylinder as the head gasket gone:(:(