old country flame flue

we bought an old country flame last year and it is wonderful! Now for the bad. I can not find a flue adapter for the stove that will fit. 8" snap pipe will fit around the flue collar on top of the stove, but then all the creosote runs out on top of the stove. We need an adapter to go inside of the flue collar that will fit the crimped end of the 8" pipe on top so it will run inside into the stove not outside and stink,smoke,make wife mad and on and on. any ideas? The ID is 7 3/4" or so.

recrimp the pipe
take it to a sheet metal shop ands have them super crimp it if needed