i dont believe everything else is right! yes, you are wayyyyy off on your diet, however, as rr has pointed out, lets see your current regimen or what you plan on. post it up!!
5x5 is good . I'm not sure where to tell you to start at really I think you may find 50kg to be very light . The bar is better than the smith machine . I know funds are tight but it would be well worth it when you can to get your diet sorted with NN.
stay away from the smith, as a novice? you need to develop balance and technique...bad idea imo.never a smith on 5x5 anyway,unless for say close grip benching.