Blown Headgasket

What is the process to repair a blown headgasket? What will I need to do this my self?

You have a '98.. I know from my brother (Montana 2002) that key thing is to remove all the wiper section to procure access to far end of the engine. . Several have gone through this endeavour on this forum so more details will be available soon.....Search the forum for "head gasket" or simply "blown" ...and you'll have dozens of threads.
Because yours is the post 97 model, you can peek at the Venture and Montana forums too that feature the same problems.......