Spiral mixers

Hi everyone, me and my husband have a small bakery in north east england and need some help. Currently we mix about 80kg of dough per day but we are starting to feel the strain. We have finally decided to take the plunge and buy a spiral mixer but we gave no idea what's good or what to look out for Can anyone help us with this? We would be looking to mix 80kgs but in a few goes would be fine. Not to expensive maybe £2000. Any help would be great xx thanks xx