R2 packs will literally make any pack you can imagine.
They will work with you on the design, then make it for you.
I've worked with R2 and have nothing but praise for them. Helped me build a custom pack that none of the other packmakers I talked to would touch.
If you want truly unique and custom with the ability to design things yourself, R2 is the place to go.
If you want custom fit and the ability to choose accessories on a tried and true design that's been refined over years, then go with McHale.