One of these garages is rented out as storage and will not be accessible for the appraisal.

Getting started should be pretty easy when it comes to insurance, however, as your portfolio starts to grow you'll likely want to get with an agent that very well versed in this area of insurance and that has access to multiple products for investors.  

Do you have access to any equity in your primary or other investment properties?

I really like the alerts feature that can quickly guide you to current topics that may be of interest: http://www.biggerpockets.com/alertsThere are a few self-contained guides that you can access here: https://www.biggerpockets.com/guides

I want to access the equity to buy more rental property.

You’ll find plenty of friendly, knowledgeable people willing to help respond to your questions.There are a few self-contained guides that you can access here: https://www.biggerpockets.com/guidesAlerts can be really helpful too: http://www.biggerpockets.com/alerts

That way you have access to the funds whenever you want but you're not paying any interest on it until you actually use the funds.

I will be leaving to go out of town for a week so I will not have access to my email.

-as you pay down the $150K, can you access any of the equity?

Centered on Interstate 14, the town is easily accessible and offers simple routes to major cities for work or entertainment.