Autotempest.com is a good car finder aggregator site. I have to stay off of it. There's probably a couple on there now. I want to go start the search for you and give you a link but right now I am not allowed to even look at other BMWs.
In retrospect I probably should have waited for a super clean 3.0 auto to appear and then do the auto to manual conversion. The transmissions are available in Latvia etc for about 3k, but I think any E39/e46 transmission pre/post lci would probably work, just not have the first gear.
I'm not willing to part with mine but everything is for sale. If somebody popped up with say $25,000 cash they can have it.