New 4 Stroke Kit Questions

Hi, I'm new to the forum and to motorized bikes, I have read a lot about them though and I had a few questions before I decide to jump the gun and buy a kit. I noticed there is a new 7G kit being offered 100$ less than the usual 4 stroke kit so that is the kit I'm currently leaning towards. A few people have said to avoid kingsmotorbikes so I was wondering if they are a trustworthy place to purchase the kit from in the first place? Also the transmission appears to be very similar to a 4g t-belt, I read that these were a bit problematic, but that the one way bearing issue had been resolved. I couldn't find any information about the oillite bushing being fixed, and whether this kit would have the updated transmission w/out the one way bearing, so any info on that would be much appreciated. Also, in the picture of the ad they only show the cranks, and none of the other parts that usually come with the wide pedal cranks, does anyone know if those parts will be included, but they were just not shown? Finally (Sorry for so many questions), if the t-belt turns out to be a piece of junk, the Q-matic drive will fit properly without any special adapters, correct? Since the HS engine is the 5/8 keyed shaft, not the tapered.

For those unaware, this is the kit I'm referring to

https://www.kingsmotorbikes.com/ghost-racer-4-stroke-kit.html?scart_affiliate_id=168

The only thing that worries me though is that it isn't an actual 4G transmission, it is sort of a knockoff even if it is the same design I feel like it might not be held to the same quality standards as a true 4G, but worse comes to worst I'll just shell out a few hundred after the 7G tranny craps out and try the qmatic. Your bike is pretty sweet btw, I like the cut out case on your 4G. Has it given you any problems since you built it?

You're right, I should just do a 212cc predator build from scratch, shouldn't be that hard right? Too bad I already ordered my 7G.