Sounds like you had a fun afternoon! My father and I went to an auction about a month ago - it was a farm who had raised Hunter Jumper and Dressage horses and who were relocating to British Columbia, and who didn't want to bring all but their best stock with them. I went with my boss and my dad (who are oddly friends....) my boss going to see if there were any horses she could use for school horses, and my dad going as my cash flow. They had about 100 horses - most of them yearlings, weanlings and colts/fillies. My boss bought three - a weanling, a colt and a filly (she likes to have younger ones on the farm that she'll do as side projects and sell for a profit). There was this gorgeous Percheron x TB mix that caught my eye but the catalog said he was foaled in 1987... he was a bit old! 23 years is just a tad old for the stuff I do when I ride. There was also this cute little QH who was about 15hh - he went for $4k so he could be a girl's first horse - it was cute! Other then that there was tons of nice dressage horses I would have loved to own but people were bidding like crazy for them... there was one Trakhener mare who was just gorgeous and we bid on but she went for quite a bit of money! I'm kinda glad I didn't get anything though because the gelding I'm part boarding now is great!
Hopefully you and your husband find what you are looking for - I love chestnuts myself but bucksins are pretty as well - they hide dirt well!
I'm an English rider though and a buckskin will always look better under a Western saddle than an English one! Maybe there are some for sale in your area you could go look at?