you should look for a slightly used blower. you can find them for easily $1500 or so. brand new is about $3000. fuel is also about 1000 based on pump, maf, tune, injectors, etc.
install would be about $500-750 would be my guess. but it can be done in a weekend easily. heck i think im moving back to either plano or arlington in may. maybe you and i and possibly someone else can tackle this and save you $500+
**I have sigs turned off, so if you're asking for advice based on your mods, I can't see them**