I would inspect things like the tires and rubber hoses for the loader. Things under the hood should be fine as the UV rays will not break the rubber down. Look for signs of dry rot. Take the hydraulic hoses and try to bend them as tight as you can. If you see cracks I would want all of them replaced, the same goes for the tires. Hydraulic hoses are too pricey but they are messy to change. The tires can easily cost well over a grand, probably closer to two grand if they are loaded and need to be replaced. I would check anything that the sun can break down, like the seat.