What is the most painless way to do this.

I already spent a lot of time on this, after removing the dummy air intakes and stripping them laboriously with all the fine detail they have with the indentations etc. My mistake was to use the MP Argent silver paint which was like water and ran everywhere. Now I really need to strip them again, plus do the main grill. Part of the grill is bare black plastic, so that is a factor too. Can the bare plastic be made to look good (e.g. with plastic media blasting, or soda, or something?) or it is going to need painting?

I'll pay someone to do it if it is an effective method and low risk (don't want them ruining it), or just get on with it myself if that is the best route - other than spending weeks on it.

I'd really appreciate any advice, I want to get back into this tomorrow......