I've spent enough time with you to know how you roll and the expectations when you're paying someone for something....it's seems super simple for everyone, as long as you're dealing with a legit business that has its **** together, Brizio.
Not my pig and not my farm....but if I could make a suggestion. Be the guy that gets invoiced every two weeks, or whatever, and pays on time. Keeps you up to speed and keeps the shop honest, plus it helps build a relationship.
10hrs for every task and rounding up on shipping...hard no! That's a company that has a stack of Weld cash just sitting waiting to get used up, or more than likely, used elsewhere and back charged to you. F that
I'm still looking forward to your vision of a 40 pick'em up, lets hope this shop can get it done within the timeline.
If you need an assistant or even a project manager, let me know I'd be happy to help. If you need to borrow lunch money just say the word.