yes I know that it's not the best confortable way to do it and I'm aware of the bad reputation of Poipet border. Prepared for difficulties but not scared though ☺️ My thinking was that the worst that could happen was to book a last minute hotel in Poipet and come back the next day so I think for me it's worth the try. My aim is actually to use the cheap way wich is the train.
Maybe you can advice some other train routes from Bangkok ?