Anybody tried hiding the wiper motor ?

Okay I'm in the middle of smoothing my firewall and want to keep my wipers but hide them by using a newer style compact wiper motor on the interior side of the firewall, I know I'll have to fabricate some mounting brackets (no problem) and do some rewiring, my question is has anyone tried this or seen it done before...

http://www.forabodin iesonly.com/mopar/showthread.php?t=117240