My only recommendation to you right now is to spend the money upfront to be protected and enter this deal with eyes wide open.

I love real estate but seems like is not for me, I was trying to put a brand new doublewide in it, I got approved for the loan but really don't have a clue about asking price for the property, I asked my realtor and she said 'well just add lot price plus house plus some cash for you' there is no comparables since all the mobile homes I see around are used and old, the price for the cheapest double wide will be close to 55k I was wondering how much should I ask for it , may be not worth maybe I can build a small house for that money??

I have a feeling that I can get $1150 to $1200, but with the wide range from the PMs I am not for sure.

Would an 8" wide handle the irregularities better than a 6" plank?

Also, consider that Conex boxes are limited to things under 8 feet tall and less than 8 feet wide. 

You don't want a wide receiver blocking for a running back. 

He just renovated a single wide, put washer and dryer room right in the middle with separate door with locks and is renting the place out like a duplex!!  

Flippers have to have wide margins and then resale.

No idea why CFPB carved out that exception to what is widely viewed as a "good" consumer protection rule.

When you say "Katy" that covers a pretty large area with a wide range home sizes as well as price points due to ages of home and neighborhood (crime, schools you are zoned to, etc.).