Spool on the street ?

Sounds like your plan is to have two 3rd members to swap depending on what you're doing right?

Nothing wrong with a spool for the drag strip, but you won't like it on the street. A 2 hour drive is a long time to run a spool. If it's all freeway and straight it might be workable, but even if it's highway and not freeway I don't think you'll want to do that. Any time the car isn't going straight you're spinning a tire.