There are plusses and minuses to all the vehicle and trailer combinations so far listed. From what I have seen in this and other posting by you 0100, you are looking at spending A LOT of money. I have to second some of the other's advice that you have been given. It may be wise to start off a little simpler, and with less money invested in the beginning. I always try to discourage racing on credit. It gets very easy to get way over your head in debt to go racing. Just remember it's a hobby. Like some others have said, if you haven't put a wheel on the track in SCCA racing, you may want to try a few weekends (even renting a trailer and tow vehicle) to make sure you are truly in it for the long haul. Another question you have to ask yourself is if you total the racecar the first weekend out there, do you have enough money to rebuild/build/buy a new one. Especially if you have tied up a lot of your money in all the stuff we have been talking about, or filled up your credit cards.
Most of us have had to slowly build up the quality and quantity of equipment over the years. After towing with a rusty 1978 Ford pick up (460 motor) for ten years I finally saved up enough to buy a F-350 Dually to tow. I still have an open trailer, but that too will eventually be upgraded.
Now I completely understand the "keeping the wife happy" deal. But when my wife ands I look back at our first race weekend, with our pup tent and rented trailer and truck, no tools, and a crappy floor jack, we have a good chuckle. I am sure your wife will survive a few weekends like that too, at least ...er ...for ..a uh....while. No one here is trying to discourage you, just trying to steer you in the right direction from personal experience.
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Tristan Smith
Buffalo's Southwest Cafe
ITA Nissan 240sx #56