55.2-59 C4 vs Crown Vic

[jaws61]

Hi guys
What everyone's thoughts on what's best to do.. I'm building a 58 Chevy truck with a 2017 mustang IRS rear end..

Just trying to make the what would be better, I'm thinking more a autotrack truck..that really handles..

Run a c4 with flat out engineering cross member and than two different bolt pattern wheels

or

Run a 2003-11 Crown Vic front suspension stock and than use 2018 Mustang wheels which end up with a 74 inch wide from tire to tire... Than I end up same bolt pattern wheels

Or 03-11 Crown Vic front with a team 321 one cross member.. makes the wheels track width right.. buy a set of wheels..

I've yet to buy a set of wheels... The trucks going to run a 6.0 ls engine and custom.chassis...

Thanks