It's work - sorry, but maybe for 100% usability you also add left/right cursor to change and add info to text about directions if possible. Also when I renamed to long name 4DSportsDriving slave just for test after pressing right direction I see main screen but did not refreshed in right way. See PNG file in attachment. I tested only WinUAE yet on Two config (without and with JIT), so maybe this is WinUAE problem but please update guru text and keyboard handling when error occur and fix problem with graphics refresh and probable this will be 100% perfec proggy in my opininion
Adding assigns by setup screen may be done in future if you think it will be usefull than entring assigns manually.