i`ve been tinkering with cars all my life but this is my first restoration {slightly daunting

If a new inner wing is welded in does it go over the top of the old one?
Is the rear corner of the roof really meant to be secured with a really big wood screw

any help greatly appreciated
Andy
ps: if theres anyone in poole who fancies restoring a moggie and getting paid with copius amounts of tea & hob nobs then my garage door is always open

pps: sorry about the wide post