The guy selling them on ebay for 1050 isnt the one that even ports them. A guy I know overseas ports them and then he ships him saws. The ebay seller then tacks on a extra cost as you see and why 200+ more sometimes. The porter is a trusted porter. But the guy selling them dont do it.
I would just buy from Kevin @huskihl for 850 first, since he does great port work too and trusted porter also. Then you save all that mark up by a reseller IMHO.