I'll post up an image of the impeller tonight when I get home.

As for cutting some plate to size and welding it in the opening, what really would be difference between that and a flange ... the plate might be what ... 1/8"-1/4" at most ... that's going to do nothing to smooth the internal flow through the housing.

Anyone know of any good online links to learning how to rebuild your own turbo? Rebuild kits are not that expensive and I'm capable, just don't know how and don't want to "learn on the job" with something like this.