for items 1 to 3 pls look out for them in the Want to Sell folder in the SHC site. They have many new posts per day selling various things. you can also do a search there to see any old posts, and phone up to enquire if sold or not... who knows, you may get lucky...
btw, MUST be Alutec har? No name brand can? FK sells them really cheep... if you looking for light weight, den not sure if alutec is that light...
if you looking for strong... hmmm... front tower bars, neuspeed is one piece, no screw joints... shud be most strong ba? see what you going for...
if looks, then it's the DC set of strut bars... absolutely beautiful...