I don't know how many times I look at a tree, decide on a method, climb the tree and based on different things I see and feel change my whole strategy for removal. How much more so from one little picture.
If the trees been like that for a while it's not likely to buckle from your weight when you climb it. But as soon as you start cutting on it removing limbs and cutting through stressed wood things start changing. I'm just saying what ever you do and decide on may have to be changed to plan B or C as conditions change in the tree.
Binding it, and supporting it if needed are just the basics. Trees going to decide what to do from then forward. If you had to climb it as you say and you decide to do it. I would climb it with a good pole saw and start wittering a way at it trying not to get it to off balanced. Climb high and make small cuts. Make a nest below to catch the chunks so they don't roll a way.
Good chance the trunk is split and still under tension, Having it well strapped helps but sometimes it'll pinch your saw.
Any time you climb above a defect your taking a chance. I would have to be there and make that judgement my self based on many variables. Giving advice on climbing a potentially deadly tree over the internet is insane. I mean not for us, but for who ever is takeing it. It could go with out a hitch, probably will, but it could easyly go a way not even thought of yet. I might do it, but not for 1500.00