My K1000 has seen a number of Northern Canadian winters(usually -20 c during the day)and has functioned well.If you have a light meter,the batteries in the K1000 for its meter can be removed.If you want screwmount,i'd say the SV or S3 would be ok.
Dave
> Which would be the best fully manual SLR be to buy
as a
backup for use
> in extremely cold temperatures. So I do not want any electronics or
> batteries.
>

