Step 1: Save up about $850
Step 2: Buy NH's QA adapter for around $560.
Step 3: Buy a weld-on QA plate for your loader bucket for $125 to $150 (many sources, eBay and others online)
Step 4: Pay a welding shop to cut off your pin-on brackets and weld on the QA plate for around $150 to $200. If you are a welder, you can do this step and save money.
Step 5: Install the QA adapter on your loader arms and start lovin' it.
I know all of this sounds expensive and complicated, but there is nothing you will ever do to increase your productivity and flexibility of your loader like making it QA. I'd say it was worth it even if it cost half-again as much.