Never seen a model 7 lefty. I have 3 model 7, a 260, a 7-08 and a 308.
Prefer the 7-08 to the others.
If you want shorter and lighter might want to at least look at a stainless CVA hunter or scout.
It can be used left or right handed and they are very short, light and compact and offered in big game calibers.
5 years ago I never thought id like a single shot but now I have 3, one 243, one 7-08 and one 35 remington.