Wheels for a duster offset and backspace

Thank you for the advice ! You are correct I am working to improve and modernize the handling of the car, the improvements I’ve made have already made a large change in the handling, it no longer feels as sloppy or like a boat on the short drives I’ve taken it on so far. One thing I am still wrapping my head around that I’ll put into my words is backspacing is basically how far back into the wheel the center point of the wheel diameter sits and offset would be essentially where the barrel of the wheel sits in relation to the centerline of the wheel? If that makes sense or are they the same thing ?