In theory, maybe depending on where you live, you could probably do 2 official 200s every weekend and a midweek DIY/Perm 200 would set you up for 30k km as a reasonable base, mix in a few longer events during the summer and it sounds almost-achievable (haha!)...
The guy's Strava heatmap thing: https://www.strava.com/athletes/4628735/heatmaps/6ed5ab12#7/52.90652/-0.69244
In theory, maybe depending on where you live, you could probably do 2 official 200s every weekend and a midweek DIY/Perm 200 would set you up for 30k km as a reasonable base, mix in a few longer events during the summer and it sounds almost-achievable (haha!)...