the plastic stuff is pretty easy. like svzetec said though be sure it is clean. and i have found that it helps to give the pieces a slight brush down with some fine grit paper before also. as far as the paint goes, i have had no problems whatsoever using the duplicolor paint and clear. that is if you are looking to use rattle cans and not a gun setup. there are some pics on here of mine when it was partially done if you want to look.