I guess where the 'value' becomes a factor is my buying power.

I am eager to get started investing to build capital and overall a more stable future, rather than factory work for the man with very little retirement I wish to get started now as I am young.

At time of writing this, no such factories currently service the area.  

The reason I would go with modular construction over shipping containers is that you can have almost all of it built in a factory.

However, with the news that GM is closing some of their factories, which 2 of them are in Detroit area, I start to wonder whether my investment plan still make sense.

The key factor is not making money when you buy.

Please reach out if you would like more information.The most important factor is finding a good company to partner with in a strong market.

. $1400 is $900 in lost rent... if you were vacant for a month, while replacing the tenant you lose more than that, plus turnover and in my opinion the most important factor, is it seems like they are great tenants. 

I want to get into REI, because its actually working towards my own dreams and not working in a factory setting ( I build and repair government UAVs...drones) for someone else's dreams.

The appealing factor is key to generate profit I agree.