Compensation for mixed clinic/dermpath practice

All,

So grateful for this forum and the info I have been able to get from it. I am likely going to be starting a split practice, with half time clinical and the other dermpath. What do you all think is the best way to structure a contract? Base pay for 2 days of clinic with agreed upon number of patient encounters and percentage of path? Percentage of all? Salary for all if the offer is good enough?

Thanks!