Now doing my first restoration project and have bought an rs with no engine or gearbox.

As im planning to rebuild an engine with forged pistons etc is the NA version of the 1.6 cvh efi any good for this or does it have to be a turbo?

Also which gearbox do i need as i want to run the escort LSD gearbox but they dont all seem to have an LSD, so how do i know which box to get?