question about dealer's capabilities

[W1N]

I'm about to make the order for 2006 H2. It will be bought from somewhere Texas (other locations could be thought of too), local dealer that is. My question is in general do the dealers have the motivation and knowledge to install Magnuson superchargers and do the needed tranny upgrades? From the experience how much do they charge for these.

I can see the Magnuson SC's go for like about $5k online, but how much dealers charge for them? Or would it be better to get one from online store and have it shipped to the dealer, which then would charge just for the installation only?

Thank you guys!