Hi! I'm currently thinking about purchasing a 2012 Kilo TT, and I'm having trouble deciding between the 47cm and the 50cm frame. I'm 5'5 with an inseam of 30.5" (without shoes)

The measurements for the TT are as follows:
47cm (c-c) is 50cm(c-t) with TT of 513mm and standover of 29 inches
50cm (c-c) is 53cm(c-t) with TT of 523mm and standover of 30.4 inches

If I get the 47cm, will the seat post look excessively awkward because it's very high?
Thanks so much in advance, help is greatly appreciated.