Exhaust your free resources to make your initial capital then worry about where to invest a marketing budget.

Is my budget reasonable?

This can be in a separate account or if you are disciplined enough can just be kept track of in a budgeting spreadsheet.Hope this helps a bit and I apologize if I misunderstood your question.

That alone could destroy your budget.

The construction loan is a reimbursement loan.BRRRR is cash intensive and make sure you have contingency and a back up plan so you don't lose the property if construction costs go way over budget.  

Really love working construction, but the smaller income has made it slow work to get into a good position financially (though it did teach me how to budget, haha.) 

That's quite a bit too late to get into notes especially non-performing. 3K is sometimes a low number to budget just for workouts.

I have the budget to install new meters but does it make more sense to install a meter for each unit?

Local Credit Union, FHA renovation loan including a $35k repair budget How did you add value to the deal?

You just have to know the market and stay within your budget.