Please Help!!!!!!!!! I am bidding of a 2800 square foot job tha consists of removing sod, leveling ground, installing railroad ties (10 around a circular drive, 12 cuts), renovating sprinkler system from a lawn sprinkler system to a drip system, laying weed barrier, and last but not least laying gravel. Materials and rental tools needed are $1100.00. What would be a good fair price to charge the customer. price per square foot or 1100.00x2 of 2.5???