Thanks so much for your input. I was directed here by someone who said that this would be the place to find the insight. And though there has only been your response it is a great help. After further research it looks like B10 from BBQ Bottom to Spring Hill is only navigable with a 4x4 and that the B5 will be better to get to Albert Town where we can pick the B10 and continue southwest.

Hopefully we'll be lucky and not encounter any major problems.

Be well.