Best way to do the Wagyu is to sous vide at 125 for half an hour then let it come to room temp and dry it/salt it. Sear it on as hot a pan as you can get it and serve MR at 135. It's too much fat for a big steak sized portion, but a little bite or two is good.
I'd rather have a 1.5" thick choice strip for 15 though.