dont take things personal buddy, in my honest opinion, i would smooth it all, the body kit is ok, just spend more time with the finish i know its your first attempt but you still want it 100% right dont you !
here is my first ever attempt at making a wide bodykit with filler, no where near done though
as you can see, just applied the next layer of filler, will be taken back to perfectly smooth,
have progressed since but have no pics,
when its done should be nice will get pics up
anyway, keep going with the model it will be nice when you finish it to your best standard