With the wedding - guess the only thing I would think of would be to set off with a lot of spare time for stops (whether it be nappy change or feeding break, or just to get the lovely one out of the car seat)! Make sure you get a good comfy car seat, a decent sun protector, and may every other stop sit in the back with babs?? We've got a similar type of trip coming up and that's all we're thinking.
And B) I think a lot of us are with you (kind of) with that one. I'm so, so, so lucky that I work with my dad and it's out of our garage! I can't imagine having to go into an office/shop, let alone have to travel so much.