I think this fight hinges on the location. Konadu has the edge anywhere but in Thailand, where Galaxy racked up an astonishing 19 defences. Galaxy has the edge at home.
Both man was hardly ever stopped and Nana hardly got ko'ed via lights out,failing to beat the count,both two of his stoppage losses are either late on his career or by ATG Sung Kil Moon,but Khaosai was kind of more insane,he had insane durability and recovery rate,and threw constant bombs for rounds,this fight will be a firefight I suspect Khaosai could win via stoppages,but Nana himself was more skilled,idk.
This would have been an absolutely brutal slugfest but I'll have to pick Galaxy by stoppage after getting hurt on multiple occasions. Great match up.