I had a fiend from my church take all the old tile off the wall & put a tub-surround ( fiberglass type) on the wall. he was able to get me a used one which saved me a lot of money. He is just a handyman type of person who has done several repairs to his house. He knew what to get so I didn't have to make several trips to the hardware store. I would ask around. Then if that doesn't pan out call a handyman 1st. Check your local newspaper ads & local bulletin boards.
Drywall in shower is not the same as on a regular wall. If doing this on your own be sure and get proper instruction for what supplies you will need to use.
call a tile guy or do it yourself. many how to's on the web.
search for how to repair tile or how to install.
seems like a lot of tools are involved so paying a guy to do it is probably best. many cycles of drying involved. with a pro it'll still take at least 3 days for install/dry/install/dry/install stages.
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