So when I got everything put together, the odometer actually read 99,999.9
No worries! I rolled her over one mile while the

and my son watched - wa-laa!!!
Getting that cluster back in takes some doing! I am glad I loosened the bolts holding the steering column up.
Took Pig for a quick drive (4 miles) and the odometer worked like a charm.
I hope this can help someone else...