Have some experience selling to EPCs (back when I worked for a large industrial supplier). I think upleveling an engineering firm to EPC is a terrific value creation opportunity, and the major downside is that you become very constrained by external delivery timelines. A motor you ordered is going to be 3 weeks late, that's now your fault. Nothing you can't handle with some process and preparation, but you should be aware of the major scope inflation that falls upon procurement orgs.

I can help with the Quality of earnings on this ^redacted‌ whoever you pick make sure they are comfortable with Percent of completion, WIP and unearned revenue. Email me for me redacted