I have mixed views on expressed panels, some of their panels are awesome, others would do the job but dont look that original and require work as the above posts mention
Front jacking points are good from expressed but the pressings are not crisp enough and i had to stand on one to make it the right width lol
The chassis section that runs from the front chassis on the inner wings to the long one under the floor is about 10mm to shallow so you end up having a gap where it should meet the fron chassis leg and too short to be inline with the long chassis
I made my own one in the end couldnt live with it being wrong
The chassis repair panels for the ends of the long one horizontal under the floor are spot on
A posts for my mk2, perfect, slight triming needed
Hope this helps and havent confused maters!
Ive not seen any mk1 oc panels so cant compair but just giving my opionion on expressed stuff
Got my inner arches in a week from them! they are awesome!
Matt