Order shmorder, do with whatever sounds best to you. I think the general consensus is that delay and verb goes best after dirt though, or through your amp's fx loop. I prefer modulation inbetween my dirt and delay/verb. But again, there's no rules to it, and if there are: Break em and see what happens.
Your 'dirt to other stuff' ratio is a bit meh...Even for my taste. I personally wouldn't put a seperate muff on my board for each setting. It's not a huge effort to quickly raise the gain a bit inbetween songs. If you need that much dirt, maybe try some more variaton. You sure the tonal difference between the ic muff and nyc muff are even audible by an audience? I'd go with a bit more variation. If you really don't have use for a regular overdrivy distortion, than fuck it. I always like at least one high gain-ish bread and butter type of dirt pedal on my board to somehwat neutraly boost whatever that needs boosting, or just on it's own when the fuzziness gets overbearing and doesn't cut through it the right way.
If you've already got one massive and super versatile delay like the flashback x, the only delay pedal I would want to add -if any- is a true analog one. The DD7 is all kinds of awesome, but it seems kinda redundant for your board
I'm personally not a huge Wah fan, I'd look at some phasers/flangers/chorus peds instead. More than enough options out there that don't sound cheesy or digital or whatever.
Patch cables: Not too hard, definatelly not too pricey: Make em yourself. Buy a bag of those pancake plugs and a good lenght of cable and fire up yer soldering iron.
Also: That opamp muff is way overkill for you, just sell it to me
