To follow on Hubs line of though (scary), if you want to roadrace, and you never did more than a few track days, start with an AMA Superbike class literbike, or even a 600.
Something light, responsive, and not terribly fast. Learn on that, and then you can decide what to do.
Besides you can get a decent literbike (or smaller, like a 600 ninja) for minimal expenditure. Hang around a track where AMA races are run, and sooner or later you'll find a decent one for sale, all set up to race, from someone with more money than skill.`
I am no longer capable of doing it, but thats not the same as never having done it. The 250s in particular are amazingly fun on tracks like Laguna Seca. They won't turn the rear tire to mush coming out of a corner, but they will force you be smooth and follow consistant lines or your lap times will suffer.
I still can't see wasting time trying to make a ZX14 a road race bike. If I was gonna bother, I'd start again with a 600 which can get you around every bit as fast as a ZX14 on some tracks. You'd be amazed how fun it is to race a 600 after riding a pig like the ZX14. Not that I lack affection for the ZX14, I just don't believe she is a good road race bike, no matter what you do to her. Unless you find a way to knock 150 pounds off her and gain 3 inches or more of clearance.
And once you wait until the last possible entrance marker to pull hard on the front brake of a 600 and feel her start to come loose and find it doesn't bother you because she is SO light, and you just release the brake while laying her over on her side and she drives on through the apex out the other side under full throttle, like she was just taking a stroll through the park.... you'll start building the kind of skill you'll need for a literbike.
You know as well as I do, you can't do that with a ZX14.
And who here is going to make a claim they are a skilled road racer who can go out today and fall asleep out of boredom running a 600 on a road course with lap times close enough to the track record to count?
So if you want to race, start with something which will cooperate with you in building skill, instead of something which will try to murder you if you make the slightest mistake.
Living the Gypsy Life