What would also be really be nice is if the results could be tailored to my location as that is most likely more relevant to me than posts in "Colorado" or "New Jersey" for instance.

So many people can present offers that aren't anywhere near what they appear....Not that you need or will know everything, but you need to know enough to spot the BS...I would tailor that to say, more specifically, "you need to know enough...to be able to determine who the good team players are".

That'll give you a good starting place to create your own tailored to the specifics of  whatever property you're evaluating. 

I go to each home and prepare an estimate tailored to that home and situation.

This will prevent me having to purchase furniture, but more importantly I could tailor the furniture styles to suit tenants or keep up with trends.

Are there any good books out there that are tailored to this investment strategy?

And make sure you tailor the offer to the seller.

Most independent agents have access to tailored products that can do this bundling for you. 

If so, I bet they would have ideas to help you tailor your services to fit your market really well.

If I were to borrow more expensive money I would have to tailor my % of ARV downwards. 77% of ARV is on the thin side but as @Hattie Dizmond said less profit is better than no profit.