My focus the past week or so has been almost exclusively on building up my walking capacity, which has paid off nicely. 12 walks in the last 14 days including a couple of full hour-long efforts. While I've been sore, I haven't been fatigued, so must be doing something right :)
Another week or so of this and I can start to shift my attention to something else on my long todo list, with a base of strength to build from!