Pretty much how I roll. OR shell mitts inside is either simple silicone covered spandex atlas gloves, i like the black/gray ones and down mitten can go between or in place of.might not be budget, but a good pair of Gore-Tex mitt outers (can use as rain mitts too) combined with Apex insulated mitts (Enlightened Equipment- 3 choices of amount of insulation) and a light liner glove is what I've settled on after many (many) years afield in all conditions. Gives you multiple combinations from just the liner gloves to wearing all three in the coldest weather.
Light, simple and relatively cheap.