A833 OD or 727 behind a 440. Suggestions and questions

I have a 69 440 in a 1980 D100 step side with an 833 OD.

It is super fun and super easy to drive.

First is awfully short (but so is my 2015 jeep Renegade 6 speed), and I spend a LOT of time in second. There are also a larger number of 2-3 shifts, which are the "power" shifts.
That should be taken into consideration as well.