Looks like a fun project....a lot of work...but fun. Are the wheels stuck...or did it just happen to stop with the mud line down on both wheels?
As to the new shop I'm moving from GA to NY....I have a 40x70 shop now and am moving to a 35x39 two story shop

I agree with the idea that no shop will ever be big enough.
Don't know your site, how you're building, or the layout for the new shop, but if it's not too late you may want to consider going even wider, but shorter. More length can be added on later, but your width will be set. I know 40' seems wide...until you start filling or working in it. My garage door is on the long side so I am pulling into 40' and not 70, so that makes a big difference as well. My flat bed and truck together are about 45' long, big as my shop is I couldn't pull them in together....let alone my '60 R190 semi and trailer. Both would fit the long way....but would also take up a lot of real estate in the process.
Just some food for thought, once the building is built it is too late to change. I thought my shop was huge...until I filled it and only had meandering pathways through it.
How far are you moving....It's never fun. We just came down to GA 2 years ago from Ohio.
Tad