I have to plant 6 red sunset maple "2 1/2 - 3", 850 dwarf pfitzer juniper 3 gal, 88 natchez crape myrtle 8'ht, 88 fragant osmanthus 7 gal, 18 nuttall oak 2 1/2-3'', 5ac. +/- bermuda seed and pine straw mulch. Should i charge by the labor hr or not, should i ask for half down? materials alone so far is running about $23,000 here in bham someone redoing apartments and wants this in a whole new landscape i usually have 2 helpers should i get more. this would be a great boost in income considering things are about to slow up round here. any suggestion?