Dam another Texan,
First I would not start off buying new plenty of great used machines in Texas at half the price.
I perfer to start a location with a double, I can easily expand or contract as needed.
Racks are great, but you need to start small, what if in 6 months you decide this is not for you?
Start small and get your feet wet, if you love it like most of us then jump in with both feet.
Just my 2 cents