The marlin model 336 in .35 cal will sell in the range of 200-350 dollars,depending on overall condition and a good bore.The price of the scope depends on the type of Bushnell you have and condition.
25-60 USD or so
"Simmons" 3x9x30 or a 3x9x40
$600-900 ish is what i would guess
This is a variable power scope- from 3 to 9 power (first two numbers). The front lens is 40 mm in diameter.
I just picked up 90% Savage 110E .270 with 3X9X40 for $350.
There's several models. If it's a 4x32, then about $25. If it's a 3x9x32, then about $30-40. If it's 3x9x40, then about $40-60. I'm not sure if there are other configurations, but you get the general idea.
Assuming that your scope is a 3x9x40 scope,then medium height rings will do the job.If it is a 3x9x50mm scope,then you will need a set of high scope rings.