Converting MQL4 to MQL5

I lied when I said I was going to wait. When I saw the option to trade multiple pairs on the strategy tester I had to switch. Anyone else made this switch yet? How horrible is it?

I'm hoping I can convert my EA's without screwing them up, but I think it may take longer to convert then it did to build them in the first place!

EDIT: Oh no! This is my simplest EA:

71 error(s), 26 warning(s)