If you do your research well, you will find reputable brokerages with a long track record of satisfied sellers and commission savings.

I am not a huge fan of manufactured homes as an asset class.

I have access to many of vacant lots here in Nevada and am looking for a mobile home manufacturer that works with investors. 

I haven't personally experienced it, but homes made with drywall that was manufactured in China for a period of time were a huge mess.

@Jeremiah Fennell reputation. 

Of course, certain blue collar manufacturing jobs and hospitality roles may remain largely unchanged.

Anyone have suggestions to find some reputable GCs in Pittsburgh, PA.

You'd call each manufacturer with the s/n to see when it was was mfg or installed (if it was registered by the installer).Its admirable you want to know everything about, just don't get bogged down with it. 

Sketch out a scenario where you LOSE money...it’s your funds, your credit, your reputation.

Again, it’s rather common, so I dint think it will hurt your sale (as long as it’s done well by a reputable contractor), but wanted you to have the info.