Need Help with a CreateSrvOrdDocument Delegate

OK, just in case anyone is interested in this, and had a hard time following the other two threads through the rabbit holes, here is the class I eventually created. It compiles, and it publishes. I have not tested it yet. But this is the code (For 2022 R2):

using PX.Data;
using PX.Objects.CS;
using PX.Objects.PM;
using System.Collections.Generic;
using PMQuoteExt = YourNamespace.PMQuoteExt;
using PMServiceExt = YourNamespace.FSServiceOrderExt;


//NOTE: The NAMESPACE MUST be set to PX.Objects.FS or this will not work correctly
namespace PX.Objects.FS
{
    /**********************************************************************************************
     *  DialogBoxSOApptCreation is implemented by graph extension of SM_ProjectEntry_DBox 
     *  Which extends not just ProjectEntry graph but also first level of SM_ProjectEntry 
     *  graph extension.  Which means, we have 3 levels involved here and so in order to override,
     *  we must include all 3 levels (ie: SM_ProjectEntry_DBox, SM_ProjectEntry, ProjectEntry)
     *********************************************************************************************/
    public class ProjectEntry_DialogBoxExt : PXGraphExtension<SM_ProjectEntry_DBox, SM_ProjectEntry, ProjectEntry>
    {
        public static bool IsActive()
        {
            return PXAccess.FeatureInstalled<FeaturesSet.serviceManagementModule>();
        }
		// Customizations
        public delegate void createDocument(ServiceOrderEntry srvOrdGraph, AppointmentEntry apptGraph, DBoxHeader header, List<DBoxDetails> details);
        [PXOverride]
        public void CreateDocument(ServiceOrderEntry srvOrdGraph, AppointmentEntry apptGraph, DBoxHeader header, List<DBoxDetails> details, createDocument baseMethod)
        {
            // Get Service Order Extension Fields
            baseMethod(srvOrdGraph, apptGraph, header, details);
            FSServiceOrder SvcOrderObject = (FSServiceOrder)srvOrdGraph.Caches<PX.Objects.FS.FSServiceOrder>().Current;
            PMServiceExt svcExt = SvcOrderObject.GetExtension<PMServiceExt>();
            // Get Project Extension Fields
            var onp = Base.Project;
            var currentQuote  = Base.Quote.Current;
            PMQuoteExt QuoteExt = currentQuote.GetExtension<PMQuoteExt>();
            // Set the values. NOTE: Because we are already calling baseMethod
            // we don't need to attach this to the PXGraph.InstanceCreated.AddHandler()
            // as we did when we added the fields to the quote and appointment example
            svcExt.UsrAuthorizedByContact = QuoteExt.UsrAuthorizedByContact;
            svcExt.UsrFieldSiteContact = QuoteExt.UsrFieldSiteContact;
            svcExt.UsrDoorLocation = QuoteExt.UsrDoorLocation;
            svcExt.UsrLaborType = QuoteExt.UsrLaborType;
            svcExt.UsrProductType = QuoteExt.UsrProductType;
            svcExt.UsrCustomerIsExempt = QuoteExt.UsrCustomerIsExempt;
            svcExt.UsrTaxExempt = QuoteExt.UsrTaxExempt;
        }
    }
}