can you send the diagram on how to put in the water pump and what gaskets are needed

That is not a consern what need to do is remove timing belt in proceedure. And if not done correctly will result in engine damage

how is that done correctly, im going to have my mechanic do this job but I would still like to know what he's in for,he's ase certified but don't know if hes ever done one on this style car. And if I could give him a pointer or two that would be nice, is taking out and putting back in a hyundai timing chain different from all other makes and models

Very similar to other cars and not a difficult job for someone trained. Straight forward task remove drive belts, front cover, timing belt then water pump