Yes, but, expect to pay for it.
No my only reference to the model 597 Remington is for a 22lr semi-auto rifle.
the store
No.
i bought my 597 for $200 but you could proabobly find one that's cheaper.
no
Rimfire rifle made by Remington
No. The stocks are not interchangeable. Boyds make some nice aftermarket stocks for the Remington 597 as well as the Ruger 10/22. The Ruger 10/22 has all sorts of aftermarket parts to customize the look and performance of your 10/22. The Remington 597 is just now beginning to get more aftermarket products available to customize your rifle.
You will probably have to contact a barrel maker.
$530.70
Do a search for Jarvis. They make a bull barrel for the $597, it runs $198 in either blued or stainless.
No, the Remington 597 magazine will not fit a .22 Viper. The two firearms are designed with different magazine specifications and dimensions, which means their magazines are not interchangeable. Always use the manufacturer-recommended magazines for optimal performance and safety.
Check the list of vendors on the Remington Society of America here: http://remingtonsociety.com/rsa/service