good things don't come cheap.
Also do note about M40/M43 engines
1) AFM - this is ex to replace and it does breaks down. It will cause idling issues
2) ICV - this is not ex to replace and it causes idling issues especially with your aircon
3) M43 - ignition coil. Just check on this.
4) Run MODIC to check on sensors or any faulty sensors. Do a reset then do a drive.
5) check suspension. E36 suspension is not so complicated. So, look at the abs mounting, abs cover, abs itself.
6) Check water leaks from radiator or hoses
7) check power steering rack (if it's leaking) or power steering hoses
8) open up engine oil cover to see condition of engine
9) check dipstick to see the oil. If it's black and thick, it's a sign of abuse and owner didn't change oil frequently
10) open up radiator
11) let car idle for 15 mins to see if overheats. See where is the position of the temp.
12) check on radiator hoses if they are soft or not
13) if it's M43 with electric fan. Run the car and see if the electric fan goes from speed 1 to speed 2. Listen if there are any noise
14) see if aircon is cold.
15) check for belt condition
16) if it's M40, when aircon is on, see if the front fan is working or not.
17) check if tools in the rear is complete
18) leather seats condition. Check on roof lining and also A,B and C pillars.
19) check on front windscreen condition for cracks or etc.
20) check highlight condition
21) check on tire condition
Hmmmm... this should be PART of the checklist when you see the car
For me, bodywork is ok. Important parts is body (rust or accident b4), engine and interior.