i recently saw a NOS pump and correct bracket on ebay - i think it was in Lithuania. if you have the bracket for the coupe, you can buy the VDO pump for other cars for around $50 on ebay and mount it onto the existing bracket - if you want to go that route, send me a PM and i will send you an ebay link.
W e have more types of glow plugs.
www.ebay.com
you can still buy the bottle from BMW (part # 61661350871), the one from W+N is a repop. URO also makes a repop that is sold by many parts sellers here in the USA. the BMW version is about 100 bucks plus another 20 bucks for the cap (61661364807). if you want a decent used one, a little brown, i have one of those - $25 plus shipping. i think W+N has the washer nozzles for the 3.0cs, be sure to get the gaskets (nozzles aren't listed on RealOEM). i have a 2800cs and our nozzles are different.