Sounds fair to me give it a go and see what happens.
Me personally am not into paying to view BHM's or custom videos but I am sure some ladies would be on board with it.
Why do you feel you have to be a certain weight to start this venture?
Why not do what lots of girls do and do a weight gain progression thing. Earn money while you are gaining if you are going to make a living doing it.

Never really thought to do that when I first started gaining.
But then I don't have a fat fetish or kink.
I do enjoy looking at comparison pics tho'.

We used to have a really good Mom and Pop buffet here and I was sad to see them close.
At my heaviest (425) 3 plates piled high was about my limit but it depended on what meats they had that night.
If they had fried chicken all bets were off and I would keep going back.
Grandma Becky's fried chicken was the best.
I would hit the desert aisle after letting my belly settle down a bit.

I always gain around 10 lbs during the holidays.
then lose it slowly over a few months.

I would suggest heavy cream.

If you are both single you should ask her out to dinner.

Never really gave it a thought but I do love being the fattest woman in the room.

Have a 9 to 5 job (secretary)
Own a home based business.
I work a lot of hours.
I tend to eat a lot therefore I am fat.
I don't keep track of measurements or my weight because they are always changing (up and down).
Have a fat BF to cuddle with.
Thats my lifestyle.

The genetics are there in both parents so I would think the possibilities are high.

So much happier being a fattie.
Was really skinny growing up and in my teen years when girls are supposed to get curvy I was still straight as a stick.
Never want to be skinny again.