Retrofit remote volume to integrated tube?

How difficult would it be to retrofit a non-remote controlled integrated amp with a motorized volume control? I want to say that there is ample room to house the parts and I can remove the LED in favor of the IR receiver "eye".

Will I be introducing potential "noise" by incorporating this "luxury" item? Am I better off finding a decent pre with remote?

I hate to add another component to my very minimalist 2 ch. tube rig just for the sake of saving a few steps from the sofa to the amp but, yes, I really am that lazy when I'm "in the groove" with my music.

TIA for any ideas and/or suggestions!

Happy Holidays!