HI Texas Rookie:
I have contacts in most parts of the nation who recondition equipment. I will be happy to see what I can locate for you.
The term conveyor oven is ambiguous: Ovens are usually rated by production capacity. Do you want a double stack? How Many pizzas will you need to bake during your busiest period 6 to 9 PM in order to produce the profit you intend to make? The answer to that question will determine the size oven you will need. Let us know what you want.
A Hobart mixer is a very doable item and S/S tables are usually readily available.
As to refrigeration, used is not recommended. There is no way to determine the condition of a used refrigeration system. The compressors are sealed. Used refrigeration most always fails within a year and fails full of food costing the operator more than he saved buying used. Buy new refrigeration and save in the long run.
There are three categories of equipment to consider. Used, reconditioned and rebuilt. Used is something dragged out of a shop that figured it time to get new, or out of a failed operation that got the equipment used.
Reconditioned has usually been cleaned, tested and inspected, any defective or suspect components have been replaced.
Rebuilt units should have all major components replaced with the latest versions and up dates. A properly rebuilt unit is very near to new.
I would not recommend the purchase of simply used equipment.
Reconditioned is usually much less costly than rebuilt but more risky. Most often in the case of ovens that have not been upgraded to the latest high efficiency burners and controls the excessive operating costs will soon surpass any savings in price paid.
If you can possibly afford it, get a rebuilt oven. Note that the cost to rebuild certain ovens is such that there are some new models on the market for almost the same price and some have five year warranties.
George Mills