Here's an update for you Nev.
Upgraded the lower bracket to 8mm, pad welded. Moves the mudguard over about 6mm, I think this will still look alright. As suggested, made a simple brace goes between bracket and axle. Chased out all the cracks, splits etc with a flap disk. Fibreglass repair and putty done, sanded back, ready for priming.
It's a bit humid here for painting. I am still a bit confused about paint, haven't done any automotive spraying before, but want to learn.
Reading the forum, I decided on 2K. The paint shop had no problems selling me 2K primer, but all the autoshops tell me I shouldn't be using it, illegal for private use at home apparently. I have read all the data sheets and have the respirator etc, so I am well prepared for 2K. I'm thinking I should return it and buy acrylic or enamel, but not sure what sticks to what, and will be best for the job.
'48 KG outfit, '51 VH, '51 4G (in bits)
Editor "The Horse's Mouth" Australia