Ask away, buddy! If I'm able to help, I'm more than happy to lend a hand
The 2836 came from another watch, and the datewheel was already fixed onto it. Unfortunately, the silver color is incorrect for this one- The datewheel should actually be white for a 16234 If you have the right datewheel (either genuine or overlay), then it's pretty easy to install- Simply line it up on the ETA datewheel and glue it on.
I don't have any yellow datewheels in my stock, but I can get a hold of a genuine yellow datewheel for a 3135 (clockwise rotation).