Weld in roll bars

[dinomite]

The only place that I have available to weld stuff is at an auto class that I take at school (night class w/ my dad). We get a 3 hour block 1 day each week, would it be possible to do it like that? i.e. would I be able to start and then drive it home, let it sit and finish next week?

I plan on puttin in the 6 point Maximum Motorsports piece: http://www.maximummotorsports.com/mmdrrb.html