There are 16 S's and 21 N's.

--e-e is an In-ian -egen- --i-- sa-s --en a -u-an -ies --e-e is a
--i-ge --e- -us- --oss -o en-e- in-o -ea-en. A- --e -ea- o- --a-
--i-ge -ai-s e-e-- ani-a- --a- -u-an en-oun-e-e- -u-ing --ei- -i-e-i-e.
--e ani-a-s, -ase- u-on --a- --e- -no- o- --is -e-son,
-e-i-e --i-- -u-ans -a- --oss --e --i-ge an- --i-- a-e -u-ne- a-a-.

Letters available:
B C D F H J K L M P Q R T V W X Y Z

Score:
DogFan77 A(25) + U(8)= 66
Karen E(35) + I(21) = 112
ShepherdLover O(10) + N(21) = 41
Daisy's Mom G(5) = 5
Violet S(16) = 16