If your friend dislike grinding and want to have fun while gaining, I recommend the
UO Stratics Treasure Hunter Guide.
I did it that 'classical' way too which means Dungeon Chests from 95 onwards. There are a couple of easy-to-access chests in the Legacy Dungeons (where you can recall at). Some in Despise are very easy but sufficient, the more dangerous ones have better loot (i.e. Destard) but higher chance to die too. Several times a Greater Dragon offered me a breezy welcome. I tried to get two gains per day but I think if you're busy you'll get a lot more ... and lots of gold and items on top of that.
This page and the links within helped me to find the various chest. True adventure!