i'm thinking of trying to start making a little money on the side polishing. i'm just not sure how much to charge. my plan is to buy about 3-4 nissan truck valve covers and polish them up and either sell them outright or do an exchange. the going rate on ebay for the covers is about $25 so how much should i sell them for when i get done with them? i'm not looking to quit my day job, but i'd like to make it worth the effort and maybe finance my polishing addiction. here's a pic of the valve cover in question. let me know what you think, i'd like to hear pros and cons from people with experience.