Seakings
A CNC part only makes sense for a long production run. The first thing is to actually properly measure the parts that you are trying to replicate. Some may be easy to measure, others, not so.
Then there's the question of deciding whether you are willing to pay for the machinist's time on the machine. He has to program the CNC work center to fabricate the part. The part may or may not come out right on the first try.
Regarding manually manufactured parts using a lathe/mill/drill, that too isn't as easy as it sounds.
In any case, remaking the parts on a machining center will result in a car that is as "unoriginal" as if you used adapted parts from other models. Adapting other parts will save you a lot of headache and the parts, being properly manufactured, will give you peace of mind as regards reliability and quality.
If you're really going all out for originality, fit the adapted parts, run your vehicle, and in the mean time, search for your original parts. That way, you won't be burdened with a huge bill, and you can enjoy your car as well while you're searching for proper parts.
Hope this helps,
Sami
