300ex mods

Hello everyone, I just picked up an 02 LT-F250F the other day and have been in the process of tearing it down to fix some stuff- one of which was the cylinder base gasket leaking like a sieve. Well, I know why that is now, and I also discovered that someone had been in there before. I didn't take pictures, but it looks like it was probably run low on oil at some point, the cam journals and the "bearings" (for lack of a better term) in the head and the valve cover are totally wiped out, very deep grooves.  From what I know it's very difficult to repair aluminum in this way, so I'm trying to figure out where to go next.
 
1. Have someone grind down the head and valve cover and fit actual bearings in since the aluminum is screwed, and have the cam ground down to match.  I have no idea what this would cost.
2. Buy a replacement head+cam+valve cover.
 
#1 I was hoping someone might have some advice on, but #2 seems like it'll (probably) be the more cost effective option.  However I'm running into some difficulty, it seems like the 2001 and 2002 models specifically use a different head part number,  11100-19B10, instead of  11100-19B01 like for all earlier models.  What exactly is the difference between them? There are obviously far more of the earlier heads because it ran for over 10 years.  Are they actually interchangeable? I've also noticed there are heads from the LT250EF that has 4 valve heads but also otherwise look identical.  Would those work as well possibly?  I'd like to not have to drop $500 on machine work or new heads on a $1300 quad that I'm already putting a bunch of new parts on.  Oh, and it has a new piston and the cylinder itself looks pretty good too, as I said someone was in here before me.
 
Any help or advice would be greatly appreciated. I'll post pics of the carnage tomorrow.
   
 

Hope everyone is having a great weekend,
While riding my quad just quit, I mean dead. No life on the dash, no crank and obesity no start. 
Had a quick look under the plastic, batt reading 12.7v power at the key switch.
Changed the power pack, still no luck.
Anyone else have similar problems?
I don't see a fuse box/panel, is there fusible links in the system? If so where di I start looking?
 
SK

FOR SALE: 2021 CFMOTO ZForce 800 Trail with many extras and full warranty until 2027. Only 625 miles and 50 hours of use.
In great condition, has a clean title and one adult owner. Has had all scheduled regular maintenance and has not been abused. Only used about six times on weekend trips to Hatfield-McCoy trails in WV.
Under full CFMOTO Care bumper-to-bumper extended warranty until 8/2027 (paid $1,600). Full service and tune up just completed with new clutch, drive shaft, belt, rollers, etc (paid $1500). Plus it comes with over $3,500 in upgrades and accessories! Way too many included items to list here (see last pics for full details).
This machine is ready to go and needs nothing - just hop in and hit the trails!  I have over $20k invested in this machine. Priced VERY fair to sell quick at less than half that!!!
$9,999 WITHOUT warranty -OR- $10,999 WITH full extended warranty until 8/2027.
Located in Chesterfield, VA 23832. Message me for more pics and info!

Hello All
I'm kinda new to ATVs. I just bought a 1987 Suzuki quad runner 230 Dual Range. I'm having a problem finding info on it. It's very clean, only 2.800 miles. The front wheels are only 30 in.center to center. I was thinking about adding wheel spacers to give it more stability. I realize the added stress on ball joints and bearings. I'm wondering if there are any other concerns? Any input is greatly appreciated!

It's been a long time since I have used a forum, I was the admin of one for quite a few years, had thousands of daily active members, with lots of crazy posts and spammers, so I salute the admins. Anyway, just waving my greasy hands, Hopefully I can help others out.