Engine replacement on Agrifab yard chip n vac

[BT3101]

I know this isn't a Orange piece of equipment, but I will repaint this dang thing if someone can help me. I am just wondering if anyone has replaced the $400.00+ Briggs & Stratton engine with a Predator 212. If you did, where did you find the adapter for the shaft? I have spent a few days trying to find one and can't find it. I have ordered a couple from Amazon where the reviews say they will work, but when they arrive, they are wrong. I know I can't be the only one who has run into this issue. I have watched a few videos on you tube, but no help. Thanks in advance for any help you could give, or provide a link to the adapter, etc......

I did this swap little over two years ago. I used an adapter I bought off Amazon. It says it's currently unavailable, but you might try searching using similar product description.
Amazon.com: XtremeAmazing 3/4" to 1" Inch Gas Engine Pulley Crank Shaft Sleeve Adapter Pulley Bore Reducer Bushing Sheave & Key Predator : Automotive

I had to drill new holes in the mounting plate too.