The only safe way to transport a BMW is to put it on a flatbed truck. If you tow using a hitch you risk damage to the rear differential and/or the transmission.
yes
Carefully
no they'd fit a bike.
No
One can purchase a BMW Towbar from: eBay, Solent Tow Bar, BTM, Witter Tow Bars, Caravan Club, Bid or Buy, Tow Sure, BMW Land, Aliexpress, My New Cheap, Mister Auto, Practical Caravan, to name a few.
Yes
of course same lug pattern 5x120
Bmw 750 hybrid
5x120
1996 BMW 750
One could purchase a BMW 750 from a local BMW dealer who is likely to have access to several models. Alternatively one could look on Autotrader, Kijiji or eBay Motors and look for a seller close by.
The 1989 BMW 750 power steering reservoir is located on the back side of the engine. The power steering reservoir will be between the engine and the firewall.