Hi Maria, I have sewn a few small details with leather like you describe, and yes, I was able to sew it on my regular machine, but it was tricky. Are there some odd-shaped corners you could test a few stitches on to see if your machine will work on it? Mine will handle some leathers better than others. If it does not work well on your machine, it may still be possible to add some leather accents, say perhaps to a camel-colored canvas bag, or a wool tweed bag? One trick I used for small accents on leathers my machine couldn’t make firm stitches on was to use it as a perforating tool — I used an empty needle and ‘sewed’ where I wanted the stitches to go, then I had a neat and even line of holes to fill with hand sewing.
It sounds like it will make a very beautiful bag!