You need to appreciate that it is necessary to show that your wife will not need to claim certain Public Funds. Accordingly having £6000 of savings can only assist in the passing of that financial test.
Your wife has a definite job to come to? If so, is there documentation to show that? And is your house reasonably near to where she is hoping to work?
And as regards that house, assuming the visa is granted, how many people will be living there? That is, how many adults, and how many children, and as regards any children, their ages?
Also, and you might need to grab a tape measure, ignoring any kitchen, bathroom or toilet, wherever their size, how many rooms in the place exceed 50 square feet in size?
All this is of course to see if you can show that the accommodation test has been passed. That is, that the place is "suitable" and certainly not overcrowded.