The only catch was he agreed to fight former UFC middleweight title challenger Dennis Hallman over six rounds on Thursday in an event at the Coeur d'Alene Casino promoted by former American heavyweight Chauncy Welliver. American cruiserweight Patrick Ferguson (10-0-1) headlines the card in fight for a WBC regional belt.
"I said why not," Thomson, who is 8-0 as a pro, said. "Kiwi fighters don't get to fight in the States everyday so it's a nice little story to tell the grandkids about one day.
"For me it's about establishing and strengthening connections in the US so we're then in a position to bring some of our better fighters who work their way through the New Zealand system and push them into the US market. It's not quite the hotbed it used to be but it's still one of the hubs of professional boxing.
"Smaller fish have to swim upstream to get any momentum."
The pathway for most New Zealand professional fighters involves attempting to build a record at home. Many are then found out when jumping in the deep end abroad.
Thomson hopes his eight-day trip will help bridge that gap for the likes of Panuve Helu, the young (10-1-1) Auckland cruiserweight scheduled to fight on Cameron's card on April 5, and again in Thomson's eight-man tournament on April 28.
Helu went six rounds in sparring with Kiwi Commonwealth Games gold medallist David Nyika in Hamilton on Wednesday. By June or July, he could be off to the US.
"They're interested in the talent in the South Pacific. They recognise Pacific Islanders are athletes so they're keen to get one or two up this way and see what they can do. If they show some talent they can push through the US rankings and maybe kick on. Instead of treading water back home in New Zealand hoping for opportunities and jumping at whatever comes up it's more getting embedded in the US and building a name from the ground up."