I'd rather save the $100 than buy any of those. A lot of people use the motherboard box or really anything. For my benching, I use a dimastech hard, witch holds nothing but the motherboard. Everything else is laid out on the table. That Lian Li works for a daily system, but i would not want to use it for benching. I had one for a daily and got rid of it. I swapped out my daily for a larger dimastech. I'd look into one of those that Dwood makes and see if he'll ship to thailand.
Also, the pots on XS have both been sold already.
As for pot recommendations, you already have some good advice. I can only share experience with what I have, but bullant pretty much has the same pots as I do. I have a Venom and the older F1 EE. I started off with the F1 and it always handled my needs. When benching ivy on full pot, I noticed that it was a bit slow and didn't do to well full pot. The venom is totally different, it's huge, it's quick, an it's cold. The drawback is that it's huge and more difficult to insulate. I probably wouldn't recommend it a first or only pot. The F1 Dark has improved where the F1 EE falls short, but they each had their purpose.
That marksman, I've never used. I have tried winning it, but never got one. But it seems everyone that has used it has had nothing but good things to say. A puple Marksman would be sweet. If only vince would have made me a purple venom.