is part number 1/4(side sill) the just the lower part of 2/5 and full quarter (panel set), part 3/6? both pieces would have a replacement lower sill, the part that is covered by the sideskirts and parts 2/5 and 3/6 do NOT cover 1/4, correct?

 

how bad is the damage? depends on the damage, if its not big, bodyshop would be cheaper then replacing whole body. time/money.

or

cut the damage out and weld on