A few tips when reassenbling a freshly painted car.
A set of small files, one flat, one round and a triangle will be needed.
Any place where there is a trim or componant hole in the body should be taped over and all the paint/materials filed back to metal using only inward strokes of the file. Then remove tape and apply a dab of grease to the exposed metal. This to avoid paint flaking with trim fastener contact.
tape up any trim to paint contact areas with a double layer of tape.
Apply a thin film of grease to any gaskets such as door handles, locks, mirrors. this will form a water barrier/seal when tightened.
Apply a dab of sealer to any threaded trim studs and tighten the nut only snug enough to secure the trim to where it dosent move. This is to avoid a "pucker" in the panel caused by overtightening. When set the sealer will help keep things secure.
Never "pound" or otherwise exert excessive pressure to locate trim push/snap clips. A steady, firm push is all that should be needed. This also to avoid a "pucker" in your panel.
You likely already know all this.... Mostly common sence.
Have fun with it and keep us abreast......