Thanks for your reply @spluppit. You are absolutely right, the cost is what is the center of this particular exercise and I should have put it in the original post. Basically, can we get a machine that increases our efficiency for our budget. We probably only have a budget of 30-50k, so if it turns out what I'm looking for is closer to 250k, it's better for us to understand that sooner rather than later and change our tact.
With that budget in mind, I think we could be more productive with the Y axis, but could get by with the C-axis.
In regards to the number/style of spindles and turrets, I understand the price goes up the more we'd want, so it may come back to what our budget can get. But I would probably say our preference would be a twin spindle machine and a single turret probably would be fine.