I don't have a budget in mind because I do the work myself and majority of the parts I can get through my suppliers. I do however like to see what everyone else is doing. Seeing what works and what doesn't. I came from owning (2) SRT-4s that I heavily modified in the past and the srtforums was just a tornado of activity with categories dedicated to even major drive line component. I guess the crowd is different here.
This is a low production market, and nothing like you are probably used to. Basic information is available if you search for it, but in general, the tuners and builders in this market had to do [and pay for] all of their R&D themselves, and as a result, hold the more specific information close. The uninformed scream Viper Tax, while those in the know understand how the system must work to pay overhead and R&D/production costs. The vendors in this market do not have the luxury of spreading R&D over hundreds of cars and sales in most cases, nor are huge operations that can produce products on a whim.
This market has already taken a huge hit in the aftermarket. As the economy slid and value of cars dropped, new buyers unfamiliar and unwilling to understand what they had purchased refused to pay typical Viper part prices, thus causing development to slow. Further affecting this is the "information shopper" mentality that has become quite commonplace where it never was before. Customers simply use knowledgeable vendors by stringing them along, and then internet shop all of the components or take that information to their local builders instead. This resulted in a further ratcheting down of information and general vendor interaction. The fact is, as Vendors, our costs have increased, not decreased- and our market has shrunk. Nobody can expect the price of parts to follow the trends of the car itself. Some simple jigged parts which have been duplicated by volume aside, part prices are generally stable with inflation, regardless of what the car itself is doing.
The fact is, these cars are simple on the surface, but very specific in terms of what works, and what doesn't, and we have VERY little OE support in terms of engineering details. Everything must be reverse engineered on our own dime. The fact that it is a V-10, and especially in the case of the newer cars due to some of the technology used, makes it a very specific application with regard to engine control. In many ways, the newer cars have more in common with Lamborghini and Ferrari aftermarket parts than they do earlier Vipers. However, all Viper owners need to understand that they are buying parts for a 100K+ car [when adjusted for inflation]
I know this post kind of bounced all over, but its just a general response on the market as a whole.