Some of the Shropshire races might be worth considering. The Wrekin on 24th March, and Wrekin Wrecker in November are both close to the motorway and easy to get to. A number of us from Essex frequently make day trips (long day trips) to Shropshire and The Peak District. The Midsummer Madness weekend near Hebden Bridge is also worth considering; 3 races in the weekend, (very good races for an introduction to fell running).