So I got a free TT frame that fits. It's kind of like getting a free puppy because I have to build it up and that won't be cheap.

I'm all about the di2, but pricing it out for a bike I'll race on thrice a year just hurts.

9 or 10s DA with mech bar ends maybe? It's like a couple hundred bucks total. How bad is it for a TT? I haven't ridden mechanical bar ends on aero bars but I have ridden di2 and it's pretty amazing to not have to think about even having to let off the power for more than half a second.