Oops! not checked this thread for a while
they will love the work. as long as the ground is soft they will out last you any day. what size of load are you think they can carry. large logs could be difficult to balance.
I don't know what size yet - probably quite small until I have a feel for what she is comfortable with. It would be better to drag larger logs like in JJ's 1st video but I don't think there's any way up for a wheeled log carrier - yet - and dragging them without lifting the front end means they'll snag on roots / rocks /etc.
I do like those vids;
Long term,I'd like to make one of those log carrier dodahs (I don't have any suitable wheels ATM), though I do wonder how I'd persuade Rosie to walk on if I'm not holding her head away from the edible stuff.
What's the extra 3 wheeled trailer in the 2nd vid for?