Custom Max, maybe the thing to do is to sell it for parts, as that seems to be the way to make the most $, & take-off your custom stuff, and look for another bike. There are lots of low-miles bikes out there in the $5-6K range, and less-$ bikes w/more miles.
I'm glad you got the thing wrestled to the curb w/o spilling it. I had a similar occurrence years-ago, on a KZ1000, my transmission mainshaft output bearing behind the front sprocket decided to totally-fracture its outer race circumferentially. I was about to get on I-95 in Ft. Lauderdale, it was a foggy morning, and it happened about 7:30 a.m. not 500 ft. from the expressway entrance. If I had been doing 65+ mph on the interstate when it happened, who knows what the outcome would have been? Much-worse, I'm sure!
Do a cost-benefit analysis: how much to return it to operational capacity, how much for it as parts, how much to buy a replacement? I've learned sometimes you need to cut your losses and start again.
There is a '92 for sale by me, a shop run by someone I know, it was $4K, he's had it on the floor for awhile, it's down to $2500 asking now, it looks clean. I haven't seen it in-person, but since he lowered to price just recently, I was going to stop-by and see it. Here's his ad:
http://miami.craigslist.org/brw/mcd/3881132137.html That's probably as-low as you can get a bike in decent shape.
On another note, I get from the comments the rider, Sheldon, who was injured, wasn't wearing a helmet? Regardless of "he was/wasn't," a sad story. I won't go a mile on my bike w/o an armored jacket, helmet and armored gloves, and boots. That's partly because of my profession, what I have seen, and what I have experienced (never a personal crash w/o a helmet, thank God, because I always wear one, even if I'm on my bicycle). ICU here is about $1000/hour in south FL. As a patient, to cross the threshold of the Level 1 trauma center closest to my home (where I take EMT and paramedic students-in-training for their hospital clinicals) it's $10,000. A Level 1 trauma center is the highest level of trauma care that you can get.