Congratulations Todd, that is major progress and in a very short time!
Hurricane season is pretty far away (as is the ocean

), but given the intense thunderstorms and near-tornado-like activity we've had in Central Texas over the past week, I might be inclined to go ahead and anchor it temporarily to its supports just for peace of mind.
Any idea when you'll get the frame back from the welder?
Keep up the great work and good luck!
-Marcus