non metalic paint doesnt have laquer, bodyshop 2 could be saying the whole panel needs doing because your original paint might be faded compared to what it was when it was originaly sprayed and is harder to get an exact colour match, and bodyshop 1 are either well confident of a colour match or there just eager to get the work.
ask both bodyshops if you can see any of there previous work, and go from there.