Deal structure advice - self funded search fund

Hello Searchfunder community!

I am looking for advice to structure a deal. Characteristics:

- LOI to be signed soon
- Terms (in negotiation):
a) EV/Price: 8M; 4x EBITDA
b) Company has income of 5M and 2M EBITDA
c) 1.5M Earnout
d) 2M seller financing
e) Sellers willing to reinvest
f) Banks are willing to finance at least 50% of deal

Questions:
1. I am looking for advice regarding a deal structure different to classic search fund structure (25%, subject to IRR Investor's return...) that could maximize searcher % equity/ returns.
2. Ideas/ advice to structure the LOI

Thank you in advance