Oh.. My bad man. I thought you had spikes & what not.. Yeah, getting up into a tree with out that type of stuff isn't something I would suggest.. especially swinging a saw around.. Wood is a funny creature, it can do odd things that will jamm u up bad when in the tree. Especially if you aren't tied in when it does, well.. that's not going to be a fun experience. In not preaching here but, no insurance, climbing with no gear?? Phew... Count your blessing man, I think were only allowed so many.
Now without contradicting what I just said, if I was in your shoes & was concerned about where it was going to land, I would climb it without plans to cut (in other words just you, no saw), get a rope in it some how and use a winch of sorts to pull it over. How do you get in it to do so? Use a ladder, a truck or something you can stand on.
Oh wait.. I just re-read something... I'm confused.. Are you saying the first limb is 10ft high & no other limbs until it gets up there? In other words nothing to climb after the first limb until the top?
If it is unclimbable without gear, you could always try one of those sling shots to set a line. Just make sure you wrap the trunk. Shoot it through one side, go grab it & send it back the other way, use a running bowline & cinch it up.
As far as property damage goes, obviously miss the house.. But your always going to have damage to the turf if your dropping it in full spread on a lawn. Homeowners need to expect that or have it explained before hand.
Regardless of all the above, take it on man, it's the only way you will learn. Definitely get yourself some gear pronto! Maybe just some simple rigging equipment, a saddle & set of spikes. Before you know it you dislike of rigging trees down will be in the past & you'll be able to take more jobs as you won't have to worry about room to lay it out. Eventually you'll laugh at the stuff you thought was risky.
Honestly though, if you want some good advice on rigging it down or risks involved, take a few pictures of it & post them up. It's hard to comprehend the job without seeing it.