Ring gaps are 0.015-0.020. Set your ring in the bore, square it with a piston and push it down about an inch, then take your ring gap. This is on my 5.0 but it gives you an idea.......
With rings installed on the piston, stagger the gaps. Top ring at 12 o'clock, 2nd ring at around 4 o'clock and oil ring around 8 o'clock.
Main bolts are NOT torque-to-yield so you're good there. Torque the mains in two stages. Go to 60 lbs the first time then go to 85 lbs the final time. Same with the rod bolts. Two stages. 25 lbs the first time then 36 lbs the final time.