I'm not clear on the last little bit in the sentence, "which a single would be the best". I thought it is similar to your clause in "I'm intending to include what they are", the purchase of item as well as verb is reversed (I forgot just what the grammatical https://jaredimnmn.ageeksblog.com/35627843/indicators-on-web-design-agency-in-north-miami-you-should-know