Casio CZ/ VZ/ FZ - Pro Series

i just got a neat little casio ht3000 from a pawnshop for 45 bucks on 
tuesday and  a crazy idea came to mind... what if i turn my old casio 
mt-740 (one of their earlier tonebank keyboards with midi ins and 
outs) into a keytar. now removing the speakers and mounting strap 
pegs should be no problem. but im wondering if i could build in some 
sort of mod/pitchweel type things that would still have midi out 
signals to control the same effects on my ht3000. im not sure ill be 
able to do this and i might just have to focus on making it 
cosmetically awesome but if anyone has any ideas id love to hear some 
input. thanks and ill be sure and post pictures of the process.

(crossposted in some other yahoogroups)