You could do it exceptionally easily with an Virus Indigo/Polar variant, even re-using the original front panel fascia without damaging or having to cut anything. It's all housed and self-contained behind the fascia.
http://www.infekted.org/virus/showthread.php?t=31443
The only two things you'd need to re-house would be the PSU and the ribbon controller PCB.
With a Virus kB, I'd imagine you'd be able to transfer all the internals in a similar fashion, you just wouldn't be able to retain the front panel (like the Indigo/Polar) without involving a nasty hacksaw, or as you say create a new front panel using something else. In this event, unless you want the custom look and welcome the hassle, you might as well sell the kB and buy a Virus B desktop, and pocket the $ difference.
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PS > And another thing! Will the Ti|3 have user customisable/importable wavetables?
A ribbon-controller or XY-Pad might be nice, too, please! Thanks!