Your comments are more an indication of your personalised wish list than a realistic zoo project proposal. It is a well-publicised fact that the Wolong station was completely demolished last year in the dramatic earthquake that rocked across Sichuan and Shaanxi provinces in P.R. China. Most pandas were transferred to other panda centers (Beijing, Bifengxia and Chengdu, Fuzhou and northern China), while the center was demolished. This month building work has started on a new center some 10-15 kms from the current location in a more open less disaster-prone section of the Wolong Nature Reserve. Most pandas will go back here and the new center will have the possibility to accomodate a larger reintroduction project section - the ultimate Chinese goal -.
And for convenience sake, you equally forget to take note of the effects on wild population numbers in the giant pandas in and around Wolong NR (and some other Sichuan giant panda nature reserves) the quake has had. Quite a bit of their resource base - the bamboo - has been uprooted and pandas have been going hungry. Meaning more relocation space required in the current panda centers in P.R. China. Or is any western nation able to take in on average 100 pandas in one go? Hardly realistic do'nt you think.
And lastly, you forget, for convenience sake, construction costs in the P.R. of China are a fraction of what would be required for an exhibit in a Western zoo (average $10 mio. investment) and multiply this by a factor * 350-400 pandas to be rescued, in situ conservation is the best option.
So, No can do (perhaps Sun Wukong can add on to that as well). LOL!!!
(Pse. do not take this personal, it is not meant to be derisory in any way, just mirror what your suggestions entail)
K.B.