Anyone using a wilwood manual master cylinder

The guy that built tho new rear end 8. 3/4 did everything he does on everyone he builds . GM metric calipers and disc I wrote to Mancini on Tuesday or Wednesday to talk about master and MBM brakes Never got back to me

so what did the guy that built the rear end suggest for a master cylinder for the ones he’s sold?

Does it look like this one?: MOPAR NEW A/B/E 8 3/4 POSI REAR DISC BRAKES COMPLETE 3.23/3.55/3.73/3.91/4.10 | eBay