318 la head vs magnum head swap help

ok guys i'm in a spot and need some advice on a few things.
so i'm just gonna start with some background on the motor first.

a couple years back i took a 79 318 block with 40,*** miles, cleaned,
and honed it, new clevite berings, stock sealed power rings, stock crank, stock rods,
stock pistons, it has a milodon windage tray and melling hv oil pump,
comp magnum timing chain and a comp xe268 cam. i already have: 1.5 shaft aluminum roller rockers, intake, (holley street dominator), carb, headers, msd dizzy and full 6al setup for this motor too.

the shortblock is done and has been sitting on the stand,
i decided to go as cheap as i could on the bottom end
since it was in such good shape, and spend the extra money
on the heads, milling, porting, 360 valves, etc. the heads have
been milled .060 thou. and they are about half ported, (other
projects in the way). the reason i'm getting back on this one
is last week a buddy priced me a decent mileage 318 magnum
for 200 bucks out of a wrecked jeep hes got. i'm buying the motor to layback.

now here is my problem, i'm thinking about goin with the mag. heads off the jeep motor. cuz theres still a lot of work and money to spend on my la heads. eithier way i'm going to be out about the same money with the magnum head swap. if i use my la heads, i'm going to spend for: larger valves, valve job,finish portjob, custom push rods, valvesprings.

if i go magnum swap: pushrods, headbolts, intake, valvesprings,valvejob.
now i figure compression will be about the same with the mags. and i would clean up the ports a little with some sand paper rolls. regardless of which heads i use, i'm going to have to buy, headgaskets, pushrods, valve job, valve covers, valve springs. so basically the only real difference is the cost of a new intake and head bolts. ( my new comp lifters are the same as the amc motors, so i have that covered already).

now here are my ?'s

1. can i use the stock magnum rockers, with new springs, and new mag. pushrods?

2. i really think the stock 1.6 rockers will make my xe 268 cam too big for the setup, what do you guys think? any cam suggestions? i have a couple new smaller cams on the shelf too.

3. does this sound like a logical setup? i mean should i go with the magnum swap? or continue with the la's?

4. have i missed any parts needed for magnum head swap? headbolts, pushrods, intake, ... (already have amc style lifters)

5. also, can i use la style valvesprings on mag. head? like comp 901-16?