Can you use a mechanical fuel pump with Magnum front cover?

if you have the LA-Stuff (timing chain cover, waterpump etc) you can simply switch it from the LA-enginge to the magnum only need are new gaskets and the cam-snout-extension to run the mech fuel pump. just done it last week

if not ... i guess you can get all the stuff needed here on FABO for cheap

That's what I'm doing, and I run an electric pump anyway.
He wants to run the serpentine system though, which will require the Magnum timing cover and water pump.

Actually if it will help any I have some of the magnum stuff I won't be using.
Timing cover, water pump with pulley, AC bracket, AC compressor, OE intake with all the injectors, fuel rails and sensors, exhaust manifolds.