No wise cracks from us Beasy just honest and good advice. Beleive me and others here, we have heard of and experienced the worst type scammers on the forum and anything we say will be because we need you to think about 'all' the outcomes before you get burnt.
It sounds as though you are moving slowly and making sure you do not make a mistake and I wish you luck in achieving your goal of bringing your lady to the UK to be with you.
And to be honest, all the people who make the 'wise cracks' have probably never been anywhere or done anything in their lives and are just quoting the same old stereo-typical stories they have heard about from chat in the pub. Hold your head up and be proud of your Chinese lady, like we are all so proud of our Filipina ladies.