The SC that shipped from Alpine was an MP62. I'm not sure about the differences but I can tell from the photo in the eBay ad that the drive (*nose) is considerably longer. I have one of the earlier cast drives (later units shipped with a billet aluminum drive) and the bearings are shot - I'm looking to get it rebuilt now. I know from some threads on here that the Alpine configuration on the drive is less than ideal - you might want to research it a bit as several have had their units rebuilt.
I'm thinking about porting the manifold before putting it back on - the whole kit has been sitting in a box since the middle of last year - fortunatly I had an extra complete manifold (from a Trooper) that I used to swap out so I didn't have to deal with the o-rings and fuel rails - just left them on the kit manifold.
-- John