260 to 302 swap

Have you searched the archives? This has been discussed a lot over the years.

Noting much if your changing the entire driveline. You will need to get a driveshaft made though. And you will also need the linkage, and trans mount. The engin bolt up to stock engine mounts. I would personally try a cable setup for the clutch, but then again I have only assisted in manual trans changes never planned one. I did the same swap but a 89 5.0 (better cam) and carbed it. I used the same transmission cept I changed the front bellhousing. to a 6 bolt. Eventually tore that one up though.