As the title says, I am starting my first fictional baseball world. My baseball league is going to be
FOUR CORNERS BASEBALL LEAGUE.
Four states, four division, two leagues, total of twenty teams. MOUNTAIN LEAGUE is going to be UTAH division and COLORADO division. DESERT LEAGUE is going to be ARIZONA division and NEW MEXICO division.
These are the teams:
UTAH
Logan Trappers
Ogden
Provo Pilgrims
Salt Lake City Salties, or just Salt Lake Salties
St. George
COLORADO
Colorado Springs
Denver Mountaineers
Fort Collins Pioneers
Grand Junction Railers
Pueblo Chupacabras
ARIZONA
Bullhead City Cowboys
Flagstaff
Phoenix Rattlesnakes
Tucson Apaches
Yuma Convicts
NEW MEXICO
Albuquerque
Farmington
Las Cruces
Roswell Aliens
Santa Fe Coyotes
I still haven't decided nicknames for some teams so I am open for suggestions there.
Teams are going to play 72 intradivision games, 60 intraleague games and 20 interleague games, total of 152 games Playoffs are going to be between 2 teams from each divison. Home field advantage goes to the team with best record.
This brings me to my questions.
1. Is it possible to have interleague schedule that alternates between divisons each year, like in real life? How do I put two best teams from each division in the playoffs? Game only offers division winners plus 2 wildcards. Is that even possible?
2. Financials?? What are the important things I need to lookout for to make this league sustainable through the years? What is a real economic power of these four states, wich of the teams should be poorer/richer? I was thinking about using modern day financials and then reducing them by 25 or maybe even 50%.
3. Best minor league and feeder league setup for this kind of league? Number of teams in the league is set, there will not be any expansions.
4. I plan to simulate first 5 or 10 years then take over one of the teams, probably Roswell. In order to keep simulation as fast as possible and as streamlined as possible, what should I tick/untick from the settings??
When I was importing my Astros save from OOTP18 it took a good 25-30 minutes to finish, and I only had 2 and 1/2 seasons of gameplay.
5. Is there something miscellanious that I need to adjust that you would recommend?
Sorry for the long post, also english is not my first language.

Thanks for all the help in advance.