Do you have an air compressor and do you have an indoor place to work on your car ?

The correct answer to what is an acceptable primer is ' one that is compatible with the paint which is being put over it '.....

I would never suggest that anyone sand a paint job on a car...( they almost all have lead in them) to take it off you should use a paint stripper and steel wool or something like it ....therefore you can not count on the factory primer being on it... and you can not really know how well the primer will work with your new paint.

Most of the books I have read agree on at least this item : Go to a pro auto paint seller and get all your paint products from the primer to the sealer coat from him.. get in writing the exact paint descriptions and numbers which he says are engineered to go together...

I would stick with the big names... PPG, Dupont, etc.... they have the RandD departments to get it right....

If you have any inclination in that direction I would encourage you to do your own painting.. paint guns are much better than in the old days.. and be sure to get a new HVLP... saves about 1/3 of the paint from going into the air...

If you think you might consider doing it all yourself I will get into greater details...

Are you fixated on using MB paint.. ? Or do you want it for a reasonable price and to last longer than you do...

Are you a patient person ? I don't know of any job which requires more self control... I also don't know of any project which will make you any more proud of the good results... I have painted three cars.. down to bare metal, fix the metal, then all the way to buff out... you can not imagine how much plain old arm work it is,,, even with air and sanders...

almost all the quality comes from the prep and after rubbing... the actual spraying is not very critical... as long as you get enough paint on the car.. even runs,,, with two part paints can usually be color sanded within four hours... so that is not a problem... just put lots of paint on as smooth as you are able... then buff until it is perfect...

The trick to that involves the tack coat.. you spray a coat on,, then let it dry ten or fifteen minutes ... then apply as much more paint as you can without it running....be sure to position lights so that you can tell when it gets smooth.. that is when you go to another spot... Greg