I went on that half over the weekend and it felt perfectly fine. I didn't really even feel the need to use the foam roller when I got home! I did this morning just because I thought it would be a good idea to push some of that acid buildup.
You guys were right about the shoes! How to start the marathon training with some gusto although I think I might do a mileage cut this week just because I think I've been building up for about 4 weeks straight so it might be nice to allow for some recovery.
One thing that did make me laugh, with all my worrying about the shoes I forgot to prepare and check I had gels, turns out I didn't! That totally threw me but I figured to hell with it, I've done the training all that will happen is that I just need some sleep. Anyway I was using a new drink as I dehydrate on long runs and was recommended this SiS Go Electrolyte, totally recommend it, didn't feel any issues apart from the usual running pain! I'm now questioning how much reliance I have on gels and whether I should be using them as much as I do? I generally take one if I'm going to be running for an hour and a half but maybe this is too aggressive and I should be saving them for race day?
Anyway, thanks for your help guys, really appreciate it 
P.S. My toes didn't tighten up at all, you guys had me paranoid so I was constantly on the lookout and they were good little toes