I think the best thing to do is build a cost to benefit ratio and then get quotes and dependant on the amount approach your banker, or any relevant funding agency with a financial plan of how you will pay them back and how it will benefit you. there are many funders out there and some government agencies buy offer equipment as a grant like GEP but it depends on age location etc

The best thing you can do in my opinion is try build up a deposit of sorts first.