Hm... 386 before upgrades. So no squads.
If you go with Ozzel and ISD1 you have enough room for 6 TIE Fighter squadrons. But a gain these are un upgraded ISDs.
I don't know how you guys do your math but well I can do the following list:
Motti
3 ISD I
3 tie fighter squadron
Howlrunner
1 tie interceptor
I have 3 ISDs, a very good anti squadron force and a good admiral. If I remove the tie interceptor I can even put ordonance expert on every ISDs
.. 405 Points.
[ EMPIRE FLEET (405 points)
1 • Imperial I-class Star Destroyer - Admiral Motti (134)
2 • Imperial I-class Star Destroyer (110)
3 • Imperial I-class Star Destroyer (110)
4 • ''Howlrunner'' TIE Fighter Squadron (16)
5 • TIE Fighter Squadron (8)
6 • TIE Fighter Squadron (8)
7 • TIE Fighter Squadron (8)
8 • TIE Interceptor Squadron (11)