Some questions for a Magnum swap.

I picked up a 91 Dodge Dakota over the weekend. I know its not a a body but its a Mopar! It has the factory 318-5.2 it was the last year for the la 318. It has a factory tbi set up. My questions are will a 5.2 magnum or 5.9 magnum bolt in there with the mounts that I currently have on the stock 318? Been told there is no difference. I will be running a carb- so I can just use my factory fuel pump but I will have to run a regulator correct? Which regulator would you recommend? The stock 318 in there now has the serpentine belt set up all ready. It does have a smog pump, which I would like to remove. Also has power steering. Could I just take the timing chain cover off of the stock 318 and put it on the magnum and then run the serpentine belt set up I already have? If I remove the smog pump how to I go about making serpentine belt set up work? There would no longer be a pulley there. I picked up a 5.2 Magnum Dakota oil pan and a set of 92 Dakota 5.2 Magnum exhaust manifolds with the larger opening. I will be running a 904 or 727 tranny- although the truck does have a a500 overdrive tranny in there now. It has the lock up converter. I was told I could just run that if I make a power switch for it. I was thinking about maybe just putting a LD4B intake and 4 barrel on the stock 318 that's in there and running duals. But I think I would have a lot more power if I go with the 5.9 Magnum. I know I have to wire up a voltage regulator for my alternator and run a la distributor and electronic ignition. Any help and suggestions would be greatly appreciated.