Coming from another car junky as yourself who loves to modify and build, Imo it seems as if you bit off alot more then is neccessary to chew...
The viper engine in the durango is great concept, I think you would have been good just dropping in a stock viper motor and gettin it to work... i applaud you for wanting a completely bulletproof bottom end that will be capable of supporting tons of hp but at times it as the desire that will stall a project for months if not years on end...Then again some of us find theraphy of just being in the garage doing our thing...Again your concept is cool, I was just a lil skeptical of it getting put together due the times and lack of disposable income