Wow - what an expensive Viper...
You can buy an SRT/10 at the Dodge dealer down the road for about $75K (they discount them to get them to sell..

) -- then you would need to pay Gerald over at RSI about $9,000 to $10,000 for the RS 550 package.
The total cost would be WAY under $100,000 ----- $85 to $90K tops - so that would over 200% taxes.
Sucks