I have a Question about color matching/mixing for 85 Mercedes 300D.

[Carrameow]

I have a Question about color matching/mixing for 85 Mercedes 300D.The two color codes I am interested in, Mercedes 1985 Dark Blue Clearcoat 904 or Smoked Silver Clearcoat 702 would be prohibitively expensive to custom mix. In lieu of the fact that this is my first paint job, its probably not worth going that route or is it? By using a paint thats mixed in say 60 gallons and seems to match up on the color chart I would probably save a ton of money or would I. Please remember that the I would settle for a slight shade off, I am more interested in a good quality paint. Is there a specific On Line Distributor of Paint that offers a wide spectrum of stock colors? Thusfar I like Smartshoppers Inc. because they are easy to deal with.