Hmm skirts ,sills n mouldings
The polish 'sideskirts" are fibreglass stickons made using the original plastic "world series"/ renault accessories sideskirts n front and rear spoilers as a template.
The meg 3 sills themselves arent really bolt on/off afaik
,might even be a cut and weld jobbie
Youre covering up dinges on the sills/lower body panel edges?
Mouldings..the original plastic strips low down on the doors?
If its a coupe(like my sig) ,you undo one bolt at the rear of the door ,slide the whole plastic moulding back a couple of inches and lift off.
The rear doors on a 4 door its something similar.
The rear strip on the coupe is a bit of a sod to get off (for a non pro like me)
Its held on by push clips .
If your'e good you may be able to reuse them :
I had to buy new ones about 50 p each at renault