Will she live in during the winter? If so I would be tempted to either hunter or blanket clip her. She looks like a cob type/good doer so she sould cope with it in theory.
I would do a chaser clip for the first time and see a) how she deals with being clipped and b) how she feels the cold once clipped.
My horse is a heavyweight cobby type and ived out all year round with no rugs for the first few years of his life, but once he is clipped out he really feels the cold and ends up wearing more rugs than the TB's at the yard.
You can always take more off, but you can't put it back!
Ah. If she will be living mainly out then I would chaser clip her. If she copes well with that and is still sweating after work then you can always get more taken off