I'm in the early stages of a start up business and researching what equipment I’ll need to purchase. My main concern is the oven. I've seen 2nd hand ovens that look ok ranging from 2 to 4k ( British pounds that is) but I’m not really sure what to look out for. What are the pitfalls of buying second hand? and what will i need to create top quality bread? I'm not even sure what size i will need. I'm looking to have a small scare operation geared towards supplying deli's restaurants and selling at farmers markets ect.

Any help or advice would be much appreciated.