Roundway Down. Prior to the main battle there was a rearguard action at Rowde plus the siege of Devizes, so may also have a go at staging these too.
Have to paint up one infantry regiment and obtain probably 5 more cavalry regiments. I may look at the army sizes and reduce the cavalry slightly, maintaining the right ratios.
Plenty of reading to do - will check up on accounts in other books to build up a clearer picture of the main battle.