hey awyeah
1stly you need to set on ya mind of what type of conversion are you gonna embark on ..
if you're gonna take for instead an m50 ...you need to choose on going for obd1 or 2 ... 5 sp or 4 sp or jatco 5 speed ...
since you're using an m43 , you need the entire wiring loom to fit in for a complete workable not problematic journey ...if you're gonna cut and paste the wiring loom , you may end up facing lotsa problem towards later on ...
now the 2nd Q , are you gonna purchase the halfcut from chop shop ? if yes it will come with the autobox too ...decide which one you wanna take as mentioned above ...
swapping an 318 auto to a 328 with cost around 4K ...i've got no clue or comments as i don't know what sort of work has ya friend carried on with ...and further more selling off the old engine is not as what you may think of getting big returns after all ....some figures of items that i sold upon from my m40 engine ...autobox and rear diff rm 450 , radiator, hoses etc rm 150 , alterantor rm 150 , afm rm150 .....the whole engine rm100 and yet the person did not pay me till today ..so summing up to almost rm1K in return ...so i'm not really sure how some 1 would spend around 4 K on their conversion whereby even halfcut there days are asking close to 7K already ....
as for manual conversion .... lets keep that for the next chapter ....now it's time for you to figure out your conversion route ...
TQ