I have heard a lot of good reviews on the HF gun, but I have no personal experince... I bought the Titan 3 gun set and I think it has worked really well for the price! If you are only planning on a few paint jobs I think it is a good set up. I can't speak on how long they last as I have only had mine for a few months... For the price they are good hobbiest guns and give you a gun for primer, touch-up, and bc/cc, and they are NEW.
I'm no body pro, but for the spoiler I would say use the bolts that are already there and then fill the gaps with some fiberglass filler. Make sure you sand all the way down to the steel before using the filler to make sure it sticks. The fiberglass is a little tougher than the regular plastic filler. Then after you sand down the fiberglass you can fix the minor imperfections with plastic filler, then just sand, prime, and paint.
Maybe some pros will chime in...
Last edited by VWFan; 04-25-2005 at 12:02 PM.