A rough number would be double your material, or maybe a little more. Not too much because he is giving you two properties and you will loose him other wise. Plus i would say add on $500 for removal and disposal of palms and old shrubs, assuming they are easy roots to get out. Im from Delaware so I've never worked with them.
There is an Old Blue Chair for each and every one of us, we just have to find it.
2006 GMC Sierra 2500hd crew cab
BOSS 8'2" Power V
Hustler X-one 60"
Toro Proline 36" wb w/t-bar controls
JS46 22" walk-behind (wouldn't recommend)
Shindaiwa T254, Echo trimmers, chainsaws, pole hedge trimmer, pole saw, hedge trimmer
Shindaiwa 633 and Husqvarna 130BT blower