Just think about it--
How good do you want the top to look?
If you did it yourself, would you be happy with the job?
The price of the job is only worth how good you want it to appear.
If you have no knowlege of the general proceedure--give the job to a
professional shop.
The top is going to have to be sanded all down--cleaned, sealed, sanded,
and painted.
The price of the materials alone is going to worth the price you
quoted--and then a bunch of labor.

Play it safe and have a shop do the work---you'll be happy you
did--believe me.
Good Afternoon,

Fred