Considering purchase of this interesting classic. It has a 6 cyl. in a 320i body. If its the 2.0 litre engine will I have difficult getting engine parts? Major parts for overhaul and things like alternator, starter, belts, hoses, etc. etc. I know I can get suspension parts from Hartge in Germany and Baur parts but I'm very concerned about engine parts. Any insight, experience, recommendations? Please email me directly. Thank you very much