Building new shop need some info

Hi everyone, i am building a new shop and I was wondering if you guys had any thing to put in my shop that you guys wish you have done . I do repairs on ag and heavy equipment . The shop is going to be 48' x40' x19' high, 16' high x18' wide main door. we are going to install infloor heat with a outdoor deul fuel furance. if anyone has any info please feel free .

Thanks