100 or so
100-10000 usd
Depending on who did the conversion; 100-500 USD
This rifle (Mauser Model 2000) is worth $350 in excellent condition.
If the rifle is in good shape it is worth $450 to $500 You do not give enough info to price out the scope as there are many different Leupold models.
$450
100-1000 usd
Depends on whether this is a pistol or a rifle - Mauser designed and produced many guns. Also, what condition it's in.
How much does an 1899 German made Mauser 6.5x55mm worth? Or how much would one cost to buy??
Mauser Waffenfabrik never manufactured a .30-06 rifle. You MIGHT have an M1917 rifle, which can be worth over $1200 in good condition and all matching serial numbers.
50-200 USD or so
No such thing. The Soviet Union never manufactured the Mauser.
100-1000 USD or more depending on specifics.