Considering the fact that I would cut the hole myself in about 10 minutes (not everyone has a steady hand like that, but you guys did see my model airplanes right? ehhehe) it would cost me nothing. However you do need tools to do that. My favorite tool looks like a pencil but it is an AIR Sculptor (Let's just say... IT IS 1 LOUD SUCKA). About $190 Canadian. After that I use sand paper to make it flush.
Sometimes if I know I will use the tool only once... I go to Home Depot, buy it, use it for 2 hours, and bring it back for a full refund. Please don't bash me... I spend enough money at Home Depot as it is.
haha ya i've done that alot too... its all good. my dad needed alot of tools for remodeling our home and we werent ever going to use them again so we returned most of them. Hey Thomas maybe i should drive to canada and have you do it? what do u say? u.. me.. two of our dubs.. canada... sounds fun. hehe im jk pal thanx for the responses