-want to look here:
http://www.procharger.com/gallery/search.php
-don't think a shock tower mod. is needed. Heck, all the hardware is at the front of the engine and shouldn't require a wider engine compartment.
-have seen FE's and Windsors in early 'Stangs that retained the front radiator frame but admittedly it was a tight fit, some had aftermarket cross-flow (i.e. non-Ford) radiators, elec. pusher fans were used, etc.