Some of you would have seen the 109" that won the best series 1 at Cooma . I saw the tub in its bare metal unpainted state , just after the professional panel beating job on it. The panels were nice and level .. so it must be possible to panel beat that metal.
As for LR inner guards..as I said before .. nothing complicated about them.. anyone with basic skills could make them up in sheet aluminium. The Lindsay Fox museum employs a guy who hand makes vintage PORSCH bodies in aluminium. He uses wooden bucks and hand beats new guards , with very complex curves in them.
The modern panel adhesives are very good and are used by bus body builders and on train carriages too.
The biggest thing is , time .If you sit down for 6 months and learn metal shaping you can do it... practice is the key . How does Wadsworth do it ? He's human like we are , he's not a alien with superhuman skills. Airframe fiters do all that stuff .. it was an apprentice trade years ago.
Mike

