Modelling Giant Block EFIS

[Gerald Hoffman]

I am just wondering if anyone has an idea on the easiest way to model the giant block exterior EFIS finish on the right side of the attached image. They blocks are about 36" long x 16" deep and have a chamfered recess of about 1/2" inch or so. The EFIS foam is 1 1/2" deep. I have the CadImage Wall Accessories but it will not do the vertical cuts in an offset pattern.

Any help would be appreciated.

Thanks,

[Gerald Hoffman]

Thanks to all. I have some family visiting right now so I may not get to trying all your suggestions out for a couple of days but will let you know how I make out.

Cheers,