Roundway Down Project (1) - quick list of forces

Just working out some basics for my Roundway Down project. Approx size of armies

Parliament: Horse 2000; Foot 1800; Guns 8; + some dragoons
Royalist: Horse 1800; Foot 2000; Guns 2 light pieces; + some dragoons

Need to get the ratios approx correct; so decided on the following forces:

Royalists:
1. Left - 2 Regiments of horse (18 figs)
2. Centre - 1 Regiment of horse (9 figs),  Galloper Gun, Dragoons
3. Right - 2 Regiments of horse (18 figs)
4. At Devizes - 5 Regiments of Foot.

Parliamentarians:

1. Left - 3 Regiments of horse (27 figs)
2. Centre - 4 Regiments of Foot, 3 guns
3. Right - 3 Regiments of horse (27 figs)
4. To the rear - Dragoons - guarding baggage and watching out for Royalist foot.

After totting up the horse required I am 3 regiments short, figs order to be done shortly - may go for some Sash & Sabre this time.