that would be HUGE amount of work not to mention getting it all correctly aligned would require building a frame inside the car to match to all the various important geometry, like subframe mounts and steering rack locations, holding the A pillars and floor pan in the right place.. not to say it's impossible but it does seem a little over kill to me
compared to that, taking the A panel and wing off is a minor job, obviously depending on your budget you would then probably want to replace with new (definitely in the case of the A panel which is cheap anyway) the main thing there is getting the door and bonnet gaps right, but that's not a huge drama..
with those two panels out of the way, and if necessary by cutting the end of the scuttle off (depending on the state of that you can either get replacement ends or weld the old one piece back in..) you would have full access to the whole flitch panel and the job would be 100% easier from that side (apart from all the work required to get to that point and then putting it all back again)
as a plus point, with the A panel off you also get to check and repair / clean up the A post which probably has some grot on it (see my build thread link below, page 5, post #67)
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edit.... if you weren't talking about removing the bulkhead itself, just the wings + front panel then sorry yes that can be fairly standard procedure but again it's probably more work than you really need. also getting everything well lined up as ALL new panels could be a bit of a pain as opposed to matching up a couple of panels to existing fitted front panel and bonnet
Edited by stuart bowes, 15 August 2023 - 02:09 PM.