Magnum 5.9 cam swap details

Scroll down to the "camshaft" and "oil pan" sections
Magnum Horsepower - getting all the power from your Dodge 5.2 or 5.9 engine. | (magnumswap.com)
Check the base circle on your reground cam, you may be able to ballpark some off the shelf pushrods to get you on the road.
How much lifter preload you setting them at?