Need Advice On Magnum Crate Engine

I picked up this engine cheap here in AZ. The specs are in the pics below. It is a pristine magnum performance short block from 1999, was still wrapped in the bag in the blue crate. Came with heads and intake. This engine did not include rocker arms, lifters, lifter retainers or pushrods.

My question is, I'm not sure how much the heads we're milled. They have burrs on the water & oil ports, so I know some material was milled off. Wondering if if they will just use stock Mopar 5.9 pushrods & rockers, or if there is a measurement to determine what I will need.

They seem to be stock magnum heads with new valves & springs. No, there are no cracks, I performed a florescent penetrant inspection on them. Please see all of the pics before replying. I'm a welder, not an engine guru. I can build an engine if I have all of the correct parts, deciding on what the correct parts are is my issue. I'm thinking I should drop it off with a good engine builder here in the Phoenix area and let them figure it out, but I'd like to avoid that if I can. Also, will the intake that is provided work with a carb setup? I can weld the injector ports up, or sell it and buy a dual plane.

Any advice is greatly appreciated, thanks in advance!

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