Hi there - I have been scouring old posts to try and get some specific details on "typical" terms for investors when it comes to a self-funded search, and even been looking for a very simple excel model that shows all the dynamics... but haven't found yet! To get to the root of my question(s), I used some real numbers below... Really appreciate your help and support!

*Pretend I buy a company for the $3 MM, and it does $1 MM EBITA per year
*I raise $300,000 from investors (10% of the purchase price), and they get 10% preferred on this (costs biz $30,000 per year).
*They have a step up of 2X, so their 10% funding = 20% of profits (after their preferred is paid out)
*I also take out an SBA loan for remaining 90% of purchase price. It's 10 years at 10% interest, so it costs ~$440,000 per year on avg
*Pretend the business never grows ebita for the sake of simplicity

Questions:
1) Is the way I described the 2X step-up above correct / the right high-level way to think about it?
2) In terms of paying investors their preferred of $30,000, it is typical that this compounds every year? In other words, I pay them $30,000 year one, and then $3,300 the year following (10% of $330,00)? ...Or something else?
3) In terms of paying investors their 20% profits of what is left after their preferred pay-out, do they get profits INCLUDING or EXCLUDING the bank loan? In other words, the 'profits' after the bank loan & preferred is $560,000 ($1 M - $440 K - $30 K), correct? Do investors get 20% on the 560 K? Do they get 20% on 970 K (1 M - 30 K)? Or something else...?
4) In the event I never sell the company, is it typical investors get their preferred and 20% profit sharing in perpetuity? Or does something change after a certain time period / after their full principal is paid out as part of profit sharing?

I know this is A LOT, so any help people can offer is MUCH appreciated.