Been busy putting up Christmas decorations....
The flange is not on backwards, but it is leaning a bit in the pic above.
I will to a bit more investigation from the guy I got the turbo from to see if I can get a better answer as to its origin.

Thanks again for the help/sugestions/answers.

Just a quick update....

HKS BOV is here....dont get too excited, its a copy.
several v-bands are here.
"U" and "J" bends for the exhaust are here. 3"
straight pipe for the exhaust should be here within a few days. Also 3"
Magnaflow muffler is here.

Been busy with life. Still need to sort the flange, but think I will have to make a template, and have a machine shop make it. No biggie.