I guess I will jump in since the experts haven't yet.
If you fill out your profile you will get a better response. You will get more help if we know roughly where you live.
Koyker is by far the loader of choice in the Yanmar Forum. I personally have a Helpmate. Allied makes a nice loader also.
It all depends on what features you are looking for and how much fabrication you want to do.
Again, depending on where you live, I could give you suggestions on who to contact.
If I can help you any more let me know
Tom