Once you have your visa (residency) stamped on your passport, you need to apply for a permit to bring a maid. This has to go through a committee. Your husband salary is not a problem, but you need to justify the need for that.

After getting the approval (requires at least 2 weeks) you can apply for her visa. All you need is passport copy.

Local help is available through some service comapnies and cost is at least QRs 2000 per month for live-in maid.

I think the salary of Indonesian maid is around QRs 600.