Thanks all! I want to like all your posts (great suggestions on the slow feeder nets and good point, Golden, about the possibility of him having a little more energy as he becomes more fit).
Strange development - I contacted the seller to tell her we'd like to do a PPE. She started humming and hawing about selling him. She felt I hadn't ridden him long enough (I let my daughter do most of the riding because I wanted to make sure she can handle him) and because she is attached to him, doesn't want him to end up not being used or being too much horse for me to handle. She suggested we do a trail ride together next Monday. I said no problem! I'll head over in the morning and we'll ride for a couple of hours in the woods. She felt I should see what he's like in all situations and while she didn't say this, I'm pretty sure she wants to make sure I'm a good enough rider to handle him! She said that if I still want to buy him after the trail ride, I can schedule the PPE.
I can't help but feel like she's evaluating me more than I'm evaluating the horse, but you know what, I'm ok with that. I told her I have no problem riding a horse in various terrain for hours on end, but I don't have the formal training my daughter does. I may be sore afterwards, but I'm confident that I can do it. We'll get to know each other better and she can rest easy knowing she's putting her horse in a good home. It tells me she doesn't care about the money, she wants to make sure he'll be used and taken care of with us. I also told her I'd be happy to provide references from my vet, trimmer, coach, whoever! And that she's welcome to come see where he will live and continue to visit afterwards.
This is a bit of an odd turn of events, but I welcome the opportunity to spend more time with this horse and get to know him under various conditions. We are going to trailer him too, so that will also be revealing!