I have my pony on full loan, but he is kept at the owner field
Full loan for me includes feed, vet bills, insurance, farrier, etc I just pay an agreed amount per week, which I pay the owner monthly!
It works out great, its like he's my own! I'm able to do what I want with him, there was nothing that she said I couldnt do with him!
I like to buy some of the things for him, like his grooming kit etc, but he came with tack and he's got his own rugs for winter, which I'm able to get when they are needed!
If I need anything else, I can just ask for it and use it if his owners got one in her supplies in his size!