The biggest problem that can happen with the ski-run transition is athletes build up a large base skiing and get injured when they attempt to immediately replicate the same volume running. Running is much higher impact and engages different muscles, ligaments, and tendons then skiing. I would start by picking a race in the spring and building out my training in the months prior. Based on your training history and conservatively building your mileage from 0, how long would it take you to get to peak? This way you can enjoy November-January, hypothetically, ski touring and slowly start to cut back on your skiing and integrate running. Alternatively, you can maintain a small amount of running throughout the season and effectively reduce how much those tendons and ligaments atrophy.
Personally, I utilize ski touring every year, even though I am primarily an ultra/mountain runner. Skiing is a great way to build your base and muscular endurance. For a couple months of skiing following the end of my running race season, I drop speed work entirely. An off season from your primary sport can reduce strain on soft tissues and psychological burn out. You’ll come into the spring more ready to embrace training due to the break. If you instead push yourself running in the snow and miss out on skiing, psychologically you set yourself up worse for the spring and summer. Sometimes the best way to reduce strain and stress is by training in fun, engaging ways. Mental and physical stress affects your body very similarly and reducing extraneous stress is one of my main goals in training.