However, are you planning to do a 1031 exchange, or is this a primary residence? 

This is less of an issue here that what you all are describing.  

This strategy could work.

The comps showed this half bathroom added $50K of value. 

I can't see what you would need a course to teach you that you can't learn by reading 30 Day Stay; listening to the BP podcast episodes with Sarah Weaver, Zeona McIntyre, and Jesse Vasquez; and hanging out in MTR forums/Facebook groups.

(This assumes you have a credit card available to pay for any repairs.).

This is literally asked monthly if not weekly.

I laughed when I read that you added value through "Pain", which I assume you meant, Paint ;-)This shows that you are going to hold this investment.

Often people overthink this.

Better to go right to the source.