Paul,

Personally I would just leave it as is with the single trigger. For a deer hunting rifle I never really saw any advantage to DT's, a varmit rifle yes. Also I think it's a little harder to change from a single trigger to DT then DT to single, you need to look at the triggerguard and see how it's made, I think they are different. I would try to find a nice hood for the front sight instead.