Blank canvas, steel sided 40x60 pole barn. Thoughts on insulating, electrical, heating???

My buiding is a 32x30 pole barn with insulated OSB walls. I installed ( I am a Industrial Electrician) a 100 amp feeder to the building with a 32 space panel. Run 3/4" EMT on the surface for your electric and pull THHN. Offers the best option for futtre expansion and layout changes. Just my 2Cents.