metal corners the pvc might be the route I go just make a big U like you said then strap it to the existing frame to take weight off the tent It might be a little while till I can spend more as I am catching much wife aggro on funds spent so far lol all part of the game space should not be an issue for some time but I will address this soon also might pull ac out as temps seem to be satying in range with my exhaust fan on med with about a 10-15 degree difference in room temps to tent not sure what the spring/summer will bring since my house is not climate controlled (But my tent is!!!
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