Your row spacing would directly relate to what type cultivator you will be using. AND the wheel spacing on your tractor. AND the spacing on your planter. Does NO GOOD to get only the planter set up and have the tractor or cultivator driving right down, on top of, the planted rows.
Obviously, the tractor and cultivator must be set up to drive between the planted rows.
You need to do some "spacing checking/measurements" and set the tractor and two implements up accordingly.
It's probably easiest to assume the wheel spacing on the tractor is a set dimension. Then have the planter set so - one row between the rear/front tires - one row outside the rear/front tires. Something like that or - both planter rows between the rear/front tires.
THEN - check to see that the cultivator will go down between the rows while the tractor is doing the same.
I never had any implements that could be used on my Ford 1700. I had a manual planter and a Troy Bilt rototiller. Planted double rows with spacing to drive the rototiller between each set of double rows.
Worked well as long as I kept my mind on my business while using the rototiller.