I did it myself, wasn't too bad. I borrowed an arch roller (dunno how much they are to buy/hire) and used a heatgun to make the paint soft. My advice is go slow, bit at a time, will take 2 or 3 hours, but it's not hard and is free. I'm totally happy with the finish I got but I pussied out of pushing them completely flat, which the pros will do without blinking. I also only did the rears, as the fronts need you to mess around with the plastic arch-liners etc. Hope this helps.