Fake iPhone 4 screen replacements?

I dropped my iPhone 4 a few days ago and got myself a huge crack on my phone's screen. And I definetely want to get it fixed as soon as possible. My parents' friends have friends that repair iPhones. One of them is a Apple Reseller worker, he can get my iPhone fixed without me worrying for only P110 dollars. But another one of my parents' friend is a self employed guy that also sells different gadgets and also repairs phones. Growing up in asia, specifically in the Philippines. I'm not sure If I can trust everyone, especially who sells fake gadgets, to repair my phone without any consequences: maybe he'll steal some parts from it, or maybe he doesn't know how to get the stuff back on, or maybe he'll lose some parts or replace it with fake ones. I'm so not sure about both my options because my 2nd option gives me half the price for the repair and my 1st option gives me a more expensive price but there, I'm sure they'll do a good job.

Sounds sketchy haha I think you Could probably get the kit and do it yourself its not all that hard I've done it before and it took an hour and I'm just your average Joe with technology

Seems you are at untrustworthy source.although they fix ipod, iphones and all but they are not the official ones. You must go at official customer service first, at least you will have faith there.