Well...If I Am Allowed...Let Me Add My 2Cents 
1st Of All..Congrats For Your 2nd Successful Swap...Its Definitely A TOYOTA And Again A very Good Choice (y)
A Bit Corrections...2E You Got Makes 70-72Hp...Where As 7AFE Makes Maxx 120hp...!!
The Difference Came And Also Which Makes 7AFE Superior Than All Others Is Its Torque Making Capability...!!
It Can Make As Much Torque As Other A Series 1.6L Makes But On Just 2800rpms..Where As Others Making Less Than 7AFE On 4800...4AGE Make A Bit More Than That On 5400....!!
The Best Thing About 7AFE Is Its Capability Of Making Low End Torque...Which Is Ease Specially For City Drive And Daily Runner Keeping Fuel Efficiency In Mind...!!
Head Design Is Same As 5AFE But With 300cc More....!!
You Did Great Job Adding 02 In It....Its Must For Getting Fuel Efficiency...!!
7AFE Surely Got A Better Low End Punch Than 4AFE But On Other Hand...Makes Almost Same Torque And Same Hp But On Low Revvs...!!
In E100...It Just Need To Drill Holes To Fit The Mount And It Will Fit....!! No Major Alters Need....!!
Best Of Luck....!!Keep us Informed About Fuel Avg You Get...!!