I ended up ordering this cam:
Mechanical Roller Camshaft; 1964 - 2003 Chrysler 273, 340, 360 2800 to 6800 Howards Cams 712113-08 | Howards Cams
I think it will fit my combo very nicely and with a possible upgrade to 1.6 rockers in the future it would increase lift to take more advantage of the long valve heads.