It would be smart choice to buy new version of Canon TS lens. The problem with older MF lenses (used via adapter) is their poor performance on digital cameras (like I said I used Kiev Pentacon lenses on Canon 5DII). I need to add a lot of Contrast and Clarity in C1 and it still doesn't look so good, it looks too soft (compared to newer Canon, Nikon, Mamiya etc lenses), it's just not good enough.
On the other hand, I'm sure that new Canon TS lens will be expensive, somewhere in the range of Horseman VCC pro, which is much more versatile solution.