Having owned both, I can say that there is no comparison really other then in the broad sence of that they are both bullpups.
Lets pencil this out. How much for new:
$1000 T97NSR
$330 t97.ca FTU
$*** t97.ca LHG (I guess a value of $300)
$*** t97.ca Magwell adapter (value of $50)
$*** t97.ca Butpad adapter (value of $25)
$*** t97.ca Mag release (value of $25)
$60 for a pistol grip
$40? For a AR buttpad
Doubt all said and done it can be had for under $1930 BEFORE tax. Not that much difference now then is there?
Also, North Sylva (the importer of both rifles) recently anounced that they have made a better deal for the Tavor with IWI due to the amount they have been able to move in Canada and have set a new lower MSRP of $2500.
Then on top of all this, the T97NSR has ZERO parts support. Its the same difference between buying a brand name product and an "off-brand" product.
At the start of this post I said I OWNED both. I will let you guess which I kept.
To me the lack of spare parts really kills the T97 and there for I view it as a throw away rifle. With that in mind, I have a hard time thinking its reasonable to buy it for the $1000 and then continue to invest hundreds into it even though the parts can be moved to a new rifle after the first one craps out.
I am a firm believer in buy once cry once after a few hard lessons in this hobby. Believe me, if you go the T97 route, you will forever yern to have a Tavor.