HOW MUCH WOULD MY DRAWINGS COST?

Time and material is what you need to know to come up with a price.What you feel your time is worth on an hourly basis,times how many hours you worked on your project. Then add to that amount to the cost of materials . That is how you come up with a price to charge someone. If they are as great as you say they are then you rate per hour should be higher ,but if the quality is just so so then the hourlyrate should be lower.