Jeff,
Best bet is to buy or build something, especially if you are looking at a lot of space. Its cheaper and you are not stuck in a lease if you have to downsize or something else happens and you need to get out. Not saying it will, but always plan for unseen emergencies. I have seen a ton of rotary shops go out of business and they were stuck in huge buildings with long leases.
Send me a PM, I have some info on a self standing building for sale that would probably work for you and its has a fenced yard in the back.