For Lehigh I'd keep rather simple. 6 league games, 2 Ivies, 2 legit "regional/days drive" power conference teams, 1 NEC/PFL type game. Use this as a template then rotate in a FBS game and intersectional FCS game each year. For instance....

2019
@ Duquesne
Richmond
@ UC Davis
Princeton
@ Harvard
Georgetown
@ Fordham
@ Bucknell
Holy Cross
@Colgate
Lafayette

2020
Butler
@ Rutgers
@ Youngstown State
Towson
Penn
@Yale
@Georgetown
Bucknell
Fordham
@ Holy Cross
Colgate
@Lafayette