waterpilot,
I purchase my products from a local distributor. Most irrigation distributors and several electrical distributors in my area sell low voltage lighting. Malibu is not a product a lighting contractor should be installing. The product is meant for a diy'er. I'm assuming you are not a lighting contractor.
There are too many manufacturers to mention and by no means are these the only higher end manufacturers, but here are a few - FX Luminaire, Hadco, Vista, Cast, SPL, Nightscaping, Unique, Focus.....
The finish on copper, brass, or bronze will lightily patina with age, but most of the fixtures will be there for a very long time. Most come with a 10 year to lifetime warranty on the fixture itself. Not the lamp or the socket. Then come the aluminum and composits (Ryton). Most aluminum fixtures come with at least 3 year to 10 year warranty. Some composits come with longer warranties. You need to find a distributor you can trust and buy his better product.
I would not wire more than 5 fixures per hub so you probably need to make 2 runs. Cast, Unique, and SPL offer hubs for sale. You can make your own with a section of 2 inch conduit and a cap or black pvc and direct burial wire nuts. If the address for FX does not work for you, try Goggle search. The address still works for me.
SamIV
