Home again. Here are the photos I promised you. As you can see, the main sink, which is quite deep, has two drawers, one shallow one - note the small cut out at the back to accommodate the drain, and a standard 12" one below. The counter is 27" deep, so the drawers are full depth.
The prep sink has a very shallow cabinet - only 21" deep because of a book case built in the gable behind it. The drawer here is only just big enough to fit my trash, compost, bird seed and a few cleaning products. We have put it on a servo drive, so the door glides open with just a touch. It is fantastic when preparing food on the adjacent counter. The cabinet maker built a shelf to raise the level of the compost bin so that it comes just under the sink bowl and does not require bending to deposit green material.
There are also photos with the drawers removed to show you how the plumbing pipes are pushed against the back of the cabinet.
We love this set up. For the first time ever, the undersink area is fully functional. Hope this helps.
Carol

Your kitchen looks lovely especially the countertop. Great colors.

Thanks again for posting! Peke

Thanks!

Suzi