Welcome to the forum, Chris! It's a great hobby, and if nothing else, it keeps us out of trouble
In your line of work, you've probably got some great opportunities to see some heavily used vehicles and equipment, and see how they weather.
Regarding having to travel for two thirds of the month, you might find that you can put together a little traveling bench and tool kit. There are other guys who do, many of them servicemen who get a little time here or there, and don't have the room to keep a large bench.
I look forward to seeing your builds!
Best regards,
Brad