Hi Greg!
I submitted my specs less than two weeks ago, so I believe I know how you feel. Choosing colors is frustrating but also a lot of fun.
Contact Muirhead! They will send you leather samples, no questions asked. They were four times as large as the samples my dealer gave me, as well. A big help.
As for custom/bespoke - just get what you want, it is "only" 1500 bucks extra. A no brainer, if you ask me.
Have fun and make sure to show us pictures, ok?
Nik