I'm thinking of putting 18X9 FR500 replica wheels on the front of my 1970 mustang convertible and 18X10 on the back. The back space on the front is 6.18 and the back space for the rear is 6.37. Just wondering if anyone knows what size wheel spacers I will need to make these work? I'm thinking 1.5 in the front and maybe .75 in the rear. The rearend is out of a Lincoln Versialle so it ir about .75 narrower than a stock rearend so I might have to go 1 out back. Want to go with Nitto G2's 295/40X18 and 255/45X18 tires. Any thoughts would be appreciated.