Need to get some advice

After doing some homework on internet review - I am considering the TCL C845 75". Arguably the picture quality might be inferior compared to Sony or Samsung's OLED offering but for the price-point - Sony/Samsung is 3 times more expensive.

Want to ask
1. Is there any shop in KL that I can have a look for this TCL C845?
2. Advisable to put this on the stand or hang it over?
3. The pricepoint is almost the same with C755. Any major advantage? I don't play games - only watching movie, drama (Astro), Netflix etc
4. I manage to get an offer around RM8400 while the Lazada official store listed at RM10k - not too sure about the 4.4 upcoming price

5. I have an existing Soundbar which the height is about 64mm - still possible to put this soundbar below the TV if I use the stand option?

Thanks so much for the guidance