I see it all the time, the maintenance facility and equipment is left as an afterthought. From the minute you plant the first sprig, you will be forever in the maintenance business. You had better organize the equipment, staff, shop, fuel and fertilizer storage, etc. BEFORE you start planting.
Triplex greensmowers are over $20,000, fairway units $50,000, you'd better plan on at least 500,000 for maintenance plant, but probably closer to a cool million.