Hi!
Point 1&2 can be set to stock with default repair times:
http://war-ace-campaign.webnode.at/download/
Point3: War becomes more difficult
Point4. As mentioned above.. if the class names and the class numbers are correct, it should work!
Otherwise MFM ships I would nort recommend because some cause CTD with WAC (probably because of ID duplication) that is not solveable!