The guy up in Canada that did it with his MP3 and his friend with the P5 that did it made it look to be a pretty sick conversion. I love the look of my 03 Speed, but there is something tight as hell about a P5 that has the conversion done. Probably cause everyone hasn't done it yet.
As for cost, won't be too much if you can find someone on here that is getting rid of their 03.5 lip. I know some guys did, but I haven't seen anyone on here lately. Might check with Pumpkinhead cause I know he talked about taking the lip off his 03.5 that he got to replace his totaled 03. But, I don't know if he already has or if he even wants to. The new look might have grown on him.