I would get the newer of the fuel tanks..
Go away from that stock primer system on the Savage. It only makes for problems, since that button loves to start leaking.

I would go with an inline primer just like your looking at. But i would go ahead and get the filter and primer in one. This way you dont have two inline units on your fuel line. much like the item below
http://myrcsupply.net/index.php?main...oducts_id=4519
the fuel tank is HPI87149
http://myrcsupply.net/index.php?main...products_id=20