Recommendations for what kit to get for my 79 to convert from carb to throttle body. How difficult is it to do etc etc. 

Any help / guidance is appreciated

If I were to do this, I'd go Holley Sniper and use their direct drop in fuel pump/fuel level sender that doesn't need a return line from the throttle body.

Thank you, any specific kit you would, have in mind?.  
And do the kits come complete or do you have to mix and match?  
Just trying to do as much homework as possible.

IF you go with a system that DOES NOT utilize an in-tank fuel pump make sure the system DOES have a return line to the fuel tank.  My experience with a "dead-end" system is that the external fuel pump doesn't get the cooling it needs and it WILL fail.  My 2 pennies worth.

Well there is this:

https://www.holley.com/products/fuel_systems/fuel_pumps_regulators_and_filters/fuel_pumps/muscle_car_efi_modules/parts/12-313

I'd call them and talk to them for recommendations.

Thank you for that, yes I will go with the in-tank fuel pump…