Low AP Scores

I am currently starting on my UCAS application and have just realised that I am not allowed to ommitt any AP scores. I currently hold one 5 in AP US history, a 4 in AP World, Seminar and Research, a 3 in French and English Language and lower scores in Physics and Calc AB. I am hoping to apply to a top school in London such as King's or Imperial. While I only meet 1 out of the 4/5 requirements currently, I am taking 7 AP classes (Environmental Science, Music Theory, Statistics, Literature, US Government, Comparative Government and European History) this year and planning on taking 4 of the tests (Stats, US Gov, Comparative Gov, and European history) and currently am expecting a 5 on all of the predict grades. Do you think it is worth applying to these schools that require 4/5 5s even though I am mainly applying with predicted grades and do not have a strong history on AP exams? Additionally, I am hoping to apply to law. Thank you!