The chrome bezels are reproduced and are nice if you can find the heavy version. You can also chrome a painted version which maybe an option
Expect to pay around $1750-2000 for a complete air cleaner assembly if you want an original
There was recently an "original" snorkel on eBay being sold by SEMO Mustang. You might start there. The air cleaner base is common to the 1968 428 CJ cars.