I think you just have to install the wallet in your windows pc, let it sync. create an address to use it as the masternode wallet. export the private key... then click on masternode, then on create... and fill the formulary.... I think the wallet is the masternode itselft..
Would you like to donate me 50000 BU-GO to try it, I am preparing a pc to run ubuntu server with some other masternodes.
BU-GO wallet....
BVVsrBSEwMKbWu6KuMKv75hLEQhwS5Lvg9
Add me to discord if you want to exchange help.
Victor Bitcoin#1180