@SunnySmiler: I've had a look into this for you, and the set size dimensions (with stand) are 963.5 x 629.4 x 195.2 mm (WxHxD) while the stands basic dimensions are 827.6 x 214.1 mm (WxD). For further details, please check the Specs via the link below. Sadly it won't be possible to attach the TV to a single legged stand.
https://www.samsung.com/uk/tvs/qled-tv/q65t-43-inch-qled-4k-smart-tv-qe43q65tauxxu/
