Cutting the trees with a chain saw isn't that hard. You can try it and see how well it goes, then get the tree saw later if you think you need it. There's probably going to be some trees you can't get the tractor backed up to anyhow.
The root rake style grapple is better than the long tine style grapple for digging and for picking up single large logs but the long tine grapple can hold more brush/small trees. If you're cutting small trees you'll be wanting to pile them to chip or burn.
We've (He's) been using a chain saw every weekend for over a year now and it's starting to kick his butt, aka lower back. The chain saw weighs about 20lbs and he's bending over for each cut so there's not much stump left. That's why he's looking at a tree saw. That's saying a lot since he doesn't complain about hard work and hates spending money.
We'll probably need to clear an area and dig a shallow hole. Maybe get a piranha bar for that.
It will probably be the Woodmaxx. I can't believe the Wallenstein is almost double the price.
Do you have any recommendations on a good company for rotary cutters and box blades? I've heard of EA and Gannon, but that's about it.A makes good stuff (I'm happy with my wicked grapple) but you can find good quality US made rotary cutters and box blades for a little less.