In Column A I have names for the sub groups

In Column E I have numerical values. I only want to rank names that have
numerical values above 750.

In Column L, I have the data I'd like to rank.

Column AI contains the ranking formula.

My data starts at row 13, with column labels on row 12. It spans through
row 6000.

Here is the formula that I have now in Column AI in no particular row, in
this case row 4015:
=IF(AX4015<750,"",IF(ISNUMBER(L4015),(SUMPRODUCT(--($A$13:$A$6000=$A4015),--(L4015<L$13:L$6000))+1),1000000))

This formula is close, but does not work. It will skip ranks because it is
assigning ranks to everything in the column, even data that is less than 750.
How do I get it to assign ranks only to data above 750?

For example, what I have now, with formula in Col AI

Col A ColE Col L Col AI What I want for Col AI
Oranges 1000 5 3 2
Oranges 1500 3 1 1
Oranges 25 4
Oranges 800 9 4 3
Bananas
etc

Anyway for me to do this?

Thanks very much.

SteveC