I sell a lot of used parts. Most are sold on eBay. My eBay store has over 5000 parts listed. That inventory is also available to you locally at prices better then what is listed on eBay. On this page I'm also listing parts that are not available online, most decks, hoods, and anything else too large to easily ship.
My ebay store is searchable by part number and here is that link: https://www.ebay.com/str/mattbecca
Used hoods are $50, currently I have Troybilt Pony, older Murray, Craftsman T3000, Craftsman DLT300
Used decks are $100. Currently I have 2 42" Craftsman AYP decks. The top deck is the most common style that uses an engage cable. The bottom deck is the older version that uses metal rods instead of a cable.