I can help you out with one point, that when the immigration department is evaluating your case they will look at your combined net worth (salary and savings) not just yours.
If you would like me to give you a free evaluation of your husbands case send me an email to
nawillsher@emigra.com. After that you can ask us to manage the case for you and we can then release our crafted document list to you of what is needed.