Magnum blocks have the same mounting ears as LA blocks so mounts aren't needed. Put the LA timing cover on and you don't need the electric fuel pump, radiator, hoses etc. all the old stuff will bolt right up. Might need a t-stat and housing because the Mag uses the later small-diameter thermostat but that's what 30 bucks for both?
Exhaust might need to change a tad just coming off the manifolds but nothing a competent muffler shop couldn't fab up for $100 or so.
