How would you rebuild this 318?

A route I’m preparing to take. I’ll use 3.55’s w/245/60/15’s and a small cam. 220@050. The math on the 1st and OD ratio works out well for what I’m looking for.

The first gear ratio is a slight high @10.96 while the OD (.71 - truck OD trans) comes to 2.52.

While not the ideal ratio set up, the 2.52 will be best for interstate traveling and the first gear ratio for traffic driving is good.

I like my cam (222/224 @.050, irc) but the 1:1 on my 3.21 rear gear is just not quite doing it for interstate travel. With the OD I’ll be able to be comfortable with the posted 75 mph interstates.
I can also cruise 1st gear in parking lots without lurching!