Friedrich 11,500BTU Portable air conditioner

https://jrmsupplies.com/products/friedrich-portable-air-conditioning-unit-11500-btu-115v-496038 Powerful high end indoor AC. I purchased this from the original owner and used it one season, however have moved and it is a bit too noisey for my small bedroom. Note that while it does have wheels, at 12k it is somewhat tall and weighs 86 pounds. As you can see, the window mount is quite marginal. It pulls and processes quite a lot of air and is most ideal and efficient for very small windows. Comes with original ducts. The original owner forgot to give me what can be translated to as factory duct clamps, however. May be able to find them online; I used duct tape somewhat successfully; alternatively the new owner may want to find some proper sized hose clamps(I think around 4 or 4.5”) and/or a little ducting insulation to help secure and insulate the intake/exhaust on the window portion. Asking 300 obo