How much?
It depends of what you want but you have to know that the job I do doesn't cost a lot I would even say I am cheap.
how to calculate ?
product to make it + my work on it = cost $
If you want cheap materials up to you it will be less expensif
but if you want 1st quality material tell me it will be noproblem like insted of pineI canuse maple who's more strong and solid but also more expensif and it give more work to it so it will cost a lot more for my work on maple.
For the moment I don't have a paypal to be able to receive money but its is soon comming.