WTB: 8 3/4 or 8 1/4 Shock Plates

I'm swapping a 8 3/4 into my 69 Dart and need to find a pair of bigger shock plates. I don't want to drill my 7 1/4 plates.

Willing to pay around 50 or 60 for a good used pair.

Also if anyone has a shortened drive shaft for that swap I'll take it too.