Bugger that sux mate.

To be honest I'd be giving serious thought to putting it on a trailer and taking it to a panel shop and hiring their Rack for a couple of hours to get it all straight and to tolerance mate. Even if you pay them to Rack it for you there is a heap of measurements that you need to be mindful of and you will Never get them right off a tree mate. No disrespect intended. If you ahve no opportunity to take it to a shop then so be it but it would be the preferred option mate. Food for thought.

Good luck mate