Exploring Northeatern China this summer...............but first need the machine!

[Wolfman]

Hi all. I am looking to explore the Northeastern corner of China this summer. The following is a rough outline of my route.

Dalian --> Shenyang --> Tongliao --> Hinggan --> Hulunber --> Heihe --> Hegang --> Jixi --> Mudanjiang --> Jilin --> Dandong --> Dalian.

Any advice is much appreciated.

I have been sorting through Chinese bike manufacturers (the ones I could find) and have come up with a list of potential machines for the trip:
Loncin JL250GY Rover

Asiawing LX450S
LX450E
BR200

Qingqi Liger QM250GY-B(A)

Lifan LF250GY-7
LF200GY-6

Pioneer XF250GY-E

Skyteam ST250TR

Sukida SK250GY-10

Skygo SG250GY-7

Please let me know if there are any other models worth considering. I am trying to find a 250, or possibly a 200, with a large fuel tank (bigger the better).

The 250s appear very similar. Has anyone taken any of these models long distances? Should I stear clear of any?

I haven't been able to locate Supersignets Shineray GY-7 anywhere. Are they still available?

Cheers,

Wolfman