Ski boards, inc., wants to enter the market quickly with a new finish on its ski boards. it has three choices: (a) refurbish the old equipment at a cost of $800, (b) make major modifications at a cost of $1,100, or (c) purchase new equipment at a net cost of $1,800. if the firm chooses to refurbish the equipment, materials and labor will be $1.10 per board. if it chooses to make modifications, materials and labor will be $0.70 per board. if it buys new equipment, variable costs are estimated to be $0.40 per board. which alternative should ski boards, inc., should choose if it thinks it can sell 700 boards?