I am more concerned to verify steady employment and income stream.

A single DSL line with 18 units simultaneously streaming video seems like a lot of traffic.  

I ask the questions above because I plan on keeping my primary source of income, and do not plan on doing REI full time, but do want to have a nice structure to have a steady revenue stream.

One is the steady income stream of course.

Exception of course is the arbitrage for higher wealth individuals to finance a vehicle and use the money to buy an income stream.  

They will either pay you more then you did for the note since yield and price move in opposite directions OR you can sell them just enough payments to cover your cost of the note, keeping the back end payments for yourself as a deferred commission.The advantage to the second method is that you are only selling the payment stream so if the homeowner pays off the loan early then the person who bought the front end gets paid their balance due, but you get the difference between the balance of the note and the glance due the investor.

Appreciation has been great, I got bargains when I purchased, and soon they will be nice income streams as the others are.

Although he'd read Allen's "No Money Down" in college, the seminar focused more on another Allen signature strategy: developing multiple streams of income (from rentals, rehabs, buying foreclosed properties, commercial properties, etc.).

Reasonable is defined based on the variety of positions you do, and an accountant can figure out.Your tax return will now show 2 income streams, W-2 Income from your corporation, and profit from your corporation.  

If the fence has a tangible value to you this isn't bad, and actually is ensuring a positive income stream for the cost of the improvement.