V Belt on Magnum are my thoughts clear

Hello all
Newbie here, doing a lot of reading and I think from what I have read on this site, as well as seen in multiple videos I am ok but want to ask the question anyway.

I have a 72 Scamp 318/904 that I am looking to do the Magnum swap in.
Already have the Magnum stripped down in the garage.

With that being said I would like to keep the VBelt LA look on the car.
Here is my plan and questions I have.
I am not building a race car, just a fun driving, reliable street car so BIG HP is not necessarily the must have. The Magnum Swap website car build is about what I am going for maybe even a bit more tame, no thing crazy.
Heads-undecided, more than likely I will pay the bigger bucks and go with the Edelbrock heads but my builder said even for my requirements the new EQ heads would work since my HP demand is not through the roof.
Intake-Edelbrock RPM air gap
Mechanical Fan
Plan to use LA timing cover from the 318 on the 5.9 magnum.
I am not running AC.
Question- Will my alternator and power steering pump from the 318 LA bolt up and line up properly?
I assume from what I am reading it will.
My magnum has the 1 piece balancer, so I know i will need to buy an aftermarket balancer that I can then bolt on the V Belt pulley.
Can I use the pulley off of the LA on the new balancer?
Looking for guidance and some confirmations