Yeah I was thinking would OP want to cross necessarily from Long-Type 2 into Ultra-Long

Maybe only if KIX-HKG was Business

Economy Standard reissue: 30--->42k AM
Business Standard reissue: 70-->85k AM
+US$100/10,000AM fee

Stand-alone Economy Standard: 10k AM
Stand-alone Business Standard: 25k AM

Because both sectors are CX, CX will check through (written policy) and protect (unwritten policy) as if one booking anyway.