Need an 8 3/4 for my 69 Dart 413/727, help?

If you look past the car you 'll see my mobile. I pulled the eng/trans in a storage unit with no power, replaced the entire front end and tried to put my 413/727 in by myself in my driveway but couldn't complete it and got help. I'm getting old and willing to pay some extra for ease of install in my driveway. I want to put the rest of my rims on before summer.
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