The zx is IRS, .....810 and Maxima wagon had solid axle but drums..
??? Nothing to do with discussion.
Zx is is rear disc brakes. With better brakes and struts on the front...As suggested above.
I was thinking of installing zx struts with T3 "big brake kit". Also Some are saying I will need a proportional valve for this swap. Is this true?
Prop valve or different master cylinder. See where we're going with this?
Big brake kit is overkill. OE zx brakes are adequate even with lots of power.
Save the money for rims.