I have Alpha Bs, and have had a variety of Images. Images >>> Alphas, IMO.
The C40 can "work" with the T65, but I would do everything in my power to get the more commensurate center in the C60. My out of my butt guess is that the C40 will be very disproportionate with power handling. Even the C60 would probably have a hard time keeping up, at least when pushing it so to speak. In fact, if the LP is very centralized, and depending on speaker positions, I wouldn't be completely shocked if it sounded better with one pair of T65s, rather than T65s + C40.
Do like what I will soon do, and get 3x towers for the front stage.

I can sell a single (repaired) T55 for cheap, btw, lol. I don't need to sell it, but I like helping people out sometimes.
edit: btw, have you seen the T65s? The depth is very substantial, please be aware.