I got the sp175 plus, bought it new with tri-mix tank, regulator, argon tank, aluminum kit, larger drive wheels and liner (for .045 aluminum wire), 10 pound of flux core 4 spools of 2 pound aluminum wire (.030-.045). Everything and tax run me around $1100, I think the welder and regulator were about 700 and the trimix $80 so price new cuz I think the plus is the next model up from the T, it seems quite pricy to me, they are great welders though I would recommend em