My 2cts:
24PcE Nikon, is really not up to the Canon 24tseII.
45TSE is really bad, don't buy it!
24tseII is very good, if you stay with medium shift f5,6 or 8 are perfect (full shift on the long side need f11).
17tse is really good, same as the 24tseII, but it is definitly toooo wiiiiiiiiide.
You should have a look at the contax pc35, and if you need tilt just add a Hartblei TS adapter sonyE to Canon E...
For longer lenses you should have a look at the medium format lenses+TS adapter, for exemple pentax55 and 75 are very good, and allow large shift...
But you could also look at mamiya or hasselblad and many more...
Regarding the size of the minitechcam option , believe me when you put the sonyA7r+metabonnes+Lbracket+TSE+compendium, on the tripod then it's not small at all ! (it is almost the same size as a cambo+digitar+db)