That is very do-able w/ a five bolt housing. I did a couple for CMS. LHT or Race Related should be able to build you one. These are very labor intensive (pie cuts) so don't be surprised at being charged $400+ for stainless.
If you have a four bolt housing the best you can do is come out at 2.5" make the first 90 and then flare to 3".
thanks for the tip...i kno your not doing fab work now but u lmk if u change your mind
$$$ lol