Hello Brian. I'm from UK but now the US and my mate does the same as you. He works for Higgins construction. He's 30 and loves running the sites. some of which run into the $20+ million figures. He has a lot of responsibility like your self and wonders if he is taking the right direction for the future. He used to work for a guy doing these sort of projects but on a smaller scale and he loved getting his hands dirty. Like him you should think twice about giving up a job of that scale. He would love to leave the UK but his job is a once in a lifetime offer. But it's upto you. I love working on my own and wouldn't want his job for anything but everyones different.