Hi Paul, thanks for your feedback. AppThemes doesn't offer installation or customization services as described, but we do have a
certified partners page where you can find developers for hire who are experienced at working with our themes. If you make contact directly with an outline of your requirements, they can provide a quote for the work. In terms of theme purchases, if you are looking to buy 3 or more themes, the most economic option for this would be to consider the AppThemes club package which you can read more about
here. Thanks.