Valve Covers and Dress-up Kits??

[96blazr]

Guys, I’m running a 1977 Corvette 350 in my ‘68 and its very stock and I would like to add more Chrome. I was wondering about which type of Valve covers to get and which would hold up the best. I don’t want to put all this time and money into it and then have them leak.
I’ve seen the Dress-up kits in Summit, but was wondering about the Covers and whether or not those covers would be a good choice?
Also, what about aluminum? Does anyone make these and if so, are they big bucks?

The covers have the PCV Valve on the driver’s side and the oil fill is on the Passenger side, along with another “valve” of some kind that’s supposed to connect to the Air Filter. I can’t remember what this is or called.
Will it be okay to use the Chrome “Breathers” in these holes for Crankcase ventilation?

Any recommendations and/or links will be greatly appreciated.