Do you know how to calculate how much wheel sticks out and how much wheel sticks in from the hub face, for a given width and offset?
If you do, then you have all the information you need, in your first post, to tell you how a 9" wheel at +30 and +38 offset will sit compared to the ones you have now.
If you don't, then there are plenty of offset calculator app websites that will do the arithmetic for you.