美国采购需求：发电机组、柴油发电机、斗山柴油发电机、船用发动机、推进发动机、柴油发动机

I'm looking for a reliable supplier who can help me with sourcing specific parts from Caterpillar or John Deere. If you can accommodate special orders for these parts, I'd like to discuss the possibilities. I'm fully prepared to cover any markup on the pricing as well as all freight charges incurred to ship the items to your location. It would be great if you could provide me with your capabilities regarding the procurement of these parts. Additionally, if you have any preferred processes or timelines for such special orders, please let me know. I'm keen on establishing a mutually beneficial arrangement and look forward to your response.