For AS you need 240/300. So you need an extra 30 marks from somewhere, so you're pretty much resitting everything. For A2 you need 480/600, so you'll need 270 marks from your A2 modules (plus any resits you might do).
I don't see why you couldn't. There seems to be plenty of room for improvement in transport + foundation. If I were in your place, I'd retake them. Foundation is probably also the easiest module to score in compared to the rest which usually have lots of random stuff.
Well done you did really well! My biology exams didnt go quite so well, as for the A question. I think it would be difficult. Its a pain that OCR dont tell you the scores needed like AQA do.