Wow! Must be fun to have such a big family of E36. Do you have pictures of all of them together?
You guys must have known E36 inside out. So is this car worth getting? Did you guys notice there are a lot of black ants in the car, one even went into the rpm meter area, must have a kingdom inside the car. I have a feeling may need to spend another 20k to build it up to my liking.
Repairs - 5k - Subjective. You will never know until you start using it and gets inspected at the workshop. For a start 5k should be sufficient. Braking also requires replacement.
M3 bodykit - 2k - Should be around there but cosmetics can hold-on
18' rims & tyres - 4k - Should be around there depending on what you are looking for.
paint alpine white - 3k - Should be sufficient. Better the quality, higher it is.
new pairs of eyes - 2k - Avoid those flimsy Taiwan made Angle/Eagle Eyes..A nice pair of originals ones should cost about 500-600 at the chop shop and sometimes cheaper if your luck is good. BTW the headlamps did not look bad.
maybe others - The "OTHERS", you will get all the racun you need and depends what you are planning to achieve.
manual gearbox later??? - 10k - Getreg boxes would be a cheaper option, but if 10K is your budget, you can source a ZF box.
is my estimations ok? What do you guys think?