Thank you all for the suggestions. Spent over an hour with Bob today touring the shop, and coming up with a design. Looks like I'm going with a M Plus THC cabinet. Still finalizing finishing touches, and then the wait begins. The good news is that full length extension shelves and drawers are standard. A few upgrades I've gone with so far are:
Upgraded to 25" depth
Raised panel doors
Top crown molding
Still deciding on inlay top, additional fans behind each shelf, color, and different door panels. If you have any other suggestions/recommendations, please let me know. Any pics would be helpful as well. I know there's plenty on the website, but more cant hurt.