Good luck with the gear swap! I know I kick myself about 3 times a month on not doing the deeper gears.
Since you do a lot of over-the-road pulling also look into an upgrade in the VAFM area and exhaust. The best mod I ever did to the 22re was the 1982 Supra VAFM. It breaths a lot better and eliminated my 5th gear hill climb issue. Match that with a nice LC header and that little 4 banger will really run. I'm doing the LC later on this month to assist the Supra VAFM that I did a while back. So far I'm knocking down 27-29mpg on the highway loaded with camping gear and an average of 24mpg in town.
Hope this helps.