What the guy with the long post said.
I have the Super Sabre pack and love it. I haven't gotten around to the trigger bow, but will add it at some point.
As far as the riser. I didn't need anything when I had the first Burris MTAC scope on it, but I didn't like the big center dot reticle in it, and wanted something different. I bought a Strike Eagle, and I couldn't get a good sight picture, and had to buy a Manticore Arms riser rail. I had issues with the Strike Eagle, and Burris was offering the MTAC with a doughnut type reticle similar to the SE, and I sold the SE and bought the Burris. Worlds better, and got it on a deal for the same price as the SE, about $280. The MTAC has the same glass as the Burris XTRs that can run $1000.
The eye relief on the Burris is 4.0" and on the SE it's only 3.5". On an AR it makes almost no difference, but on the Tavor it's huge.
I haven't mounted it back on the factory rail, but I'm going to just to see if I like it better than on the riser. I had all the scopes mounted in a Burris PEPR QD mount.
One other thing, is don't screw around with the lights. Just go ahead and get the MI or the Manticore Arms Fore end and mount the light in it under the barrel.
I'm still running a light mounted on the side rail, but , I do have an aftermarket fore end. I just haven't had the cash to get the front end cap for the light and a new light. I have one of the huge 750 Lumen PA lights on it now.
I had an Inforce that I liked, but with the SE the glass was so bad in low and no light that I had to put the big one back on it. With the Burris I could see fine. I live out in the country and shoot foxes and coons and things and they'll be running. I can't see good to begin with, but tracking them in the SE was terrible. I had the 400 lumen one and it wasn't enough. It was more than enough with the Burris.
Balance is severely negatively affected with the big light.
You'll need to get used to the really high sight height over bore with the Tavor. Once you get used to it it's fine, but it takes time.
One thing you can do is have a short distance zero when you know all you'll be doing is about 50 yards and under, and then a battle sight zero or a zero for the scope you're using, like the 100 yard zero on most BDC types. The scopes will not be dead on yardage wise. The difference in sight height over bore will change the impact a few inches at distance. For instance, the 400 yard mark will be about 20 yards off. It will still be only inches off, so it isn't bad.