It looks like somebody has used the old "wheelbarrow" trick to make some room at the firewall for a non-stock bellhousing. Depending on which engine and/or transmission you choose to use, it might be a good idea to keep that modification. It looks a bit narrow, though!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!