well, I can only guess based on some custom order pricing from a then local cabinet shop that specialized in kitchen, etc. cabinets that charged 2x their highest price lineal inch to cover custom veneered 3/4" marine grade ply, but the only pricing I found in a quick Google search was from 2006 at $15.5/inch, so $31 x 30 = $930/cab.

Since the M19 uses somewhat less expensive 3/4" veneered MDF, I'd think twice about paying more than ~ 0.7 x 930 = ~$657/cab and if you choose one of their high volume panel materials, then only ~ $465/cab since cost will be mostly labor/profit.

Of course it's the shop's job to find the most you're willing to pay, so it will be interesting to hear what quotes you get in these economically trying times.

GM