How do we feel about the likelihood of a recession or downturn?

I own a small construction business, unfortunately my business type usually takes a pretty big hit during recessions, my business provides for wants, not needs.

I need to make a large equipment purchase that will take a fair portion of my liquid capital, if i make this purchase it will take me down to having about 3 months operating capital left in my business account, i usually make these major purchases in early spring as my business really generates a majority of its revenue in spring-fall. Under normal circumstances i wouldnt hesitate to pull the trigger on this purchase. But im not sure i wanna take that chance if the Iran situation causes the economy to start sliding.