Advice for new Rosy Boa project

I'm looking for information regarding breeding Rosy Boas. I've loved Rosys since when I was little and unfortunately had to give my rosy away when I was in college since I couldn't take her with me. Now, many years later I want to try breeding as a side gig/ hobby.

I've heavily researched the basics, however before I start my slow dip into this project I would love more information from experienced breeders.

1. It seems like overall in the reptile world Rosy Boas are overlooked in favor of corn snakes, ball pythons, king snakes and of course Kenyan sand boas. Is there a reason breeders or customers overlook rosys in favor of other snakes?

2. What are the top three biggest issues/mistakes new breeders tend to have?

3. I figure there are probably three levels of income from breeding.
1. Enough for family Christmas presents and maybe a vacation.
2. Heavily contributing to household income.
3. Living off of breeding.

I am not interested in #3, but I would like advice on how to eventually get to #2 and what scale of a breeding project I would need. I am patient and know it will take years to get to #1, let alone #2.

4. I have heavily researched rosys, however localities and morphs vs line traits seem somewhat convoluted, not to mention official names. What resources would you recommend to help straighten out my understanding?

I am looking at getting a female Hypo rosy this fall and then a male snowwhite next fall and breeding the pair once they are old/big enough.

Any additional advice is greatly appreciated!