I upgraded my Omega series II to a ss bar (has to be series II also because the lights and bar sit A LOT different).
Looks **** without side skirts. You will also need new grills and chrome surrounds. I bought an aftermarket one for 300 on Ebay and it looks great.
Before missus rear ended someone
After ( secretly i was happy because i had an excuse)
Skirts are around $100 a pair from holden and the local painter did the whole lot for $200.