Due to ideological differences with the JLA Batman got his team together in '85:
Batman
Black Lightning
Metamorpho
Katana
Halo
Looker
Geo Force

This is the team i think Cap would have put together during the same time frame:
Captain America
Falcon
Nova
Powerman
Iron Fist
Scarlet Witch
Vision

Two scenarios, both no replacing of characters, no prep, no BFR:

1. 80s versions of the characters

2. Modern unamped versions