For you to operate the business thru (involving money transactions) your webpage you might need a commercial registration, bank account etc. for that you might need a local sponsor. To start a website just register your domain, get some web space, if you want to register with ".com.qa" or get web space in with qtel visit http://www.qatardatacenter.com/ i don't know their charges, but surely it will be high than most of US servers. Many hosting companies provide free applications to make your websites, but surely less quality than professional ones.