I have the opportunity to purchase a 2006 S-Works Stumpy frame "upgraded" with the a AFR shock off an '07 Stumpy Pro. Does anyone see any problems with this combo from a geometry standpoint?

For the same price I can get a "new" 2006 S-Works Stumpy frame w/ AFR, or '07 Stumpy Pro Frame w/ AFR....any major differences?

Thanks for the help in advance!