Our base kit costs $5500.00. It is rated for 400HP- 900HP. The reason we hesitate to give "blanket prices" is because there are literally hundreds of options. You can omit the recirculating wastegates and just dump them, you can add a boost controller (manual or electronic), you can add an intercooler or meth, you can upgrade to bigger down tubes, wastegates, etc..... bottom line is we like to spend a few minutes talking with you to get an idea on what your project is all about. We want to make sure you're using the best possible pieces to achieve your desired power goals. Everything has to work together as a package and we take that all into consideration when choosing turbos and related components for your specific needs.
Hopefully the base kit price will at least give you guys a starting point.
Here is a pdf of what is included in our base kit:
http://www.sd-concepts.com/documents/sdce_profile_mopar_turbo.pdf
If you are interested in one of our turbo systems, let me know and I'll gladly offer more detailed info.