There are a number of different Chinese repop seats on the market. Fitment issues are common as most differ in some way from OEM Honda. The 12v seat latch/locating posts should be the first things to go, they don't interface with anything on a 6v frame. On some, the rubber biscuits are too thick and you may be able to simply replace them with OEM or cut them down. It's been a while since I've seen a Chinese seat with the toolkit holder/latch bracket. On some, it is possible to transplant the OEM bracket from your old seat. Unfortunately, there are a number of different seat pans out there and the newest of them have a diiferent "tunnel" profile that doesn't locate the seat latch bracket where it needs to be without mods. If you're handy with metalfab, some cutting/welding and scrap metal can bridge the gaps. You could use the seat without a latch or toolkit holder.