During the past year or two, Jason has been a fairly regular fixture on the schedules of various type conferences (ATypI, TypeCon, et al.) speaking about this topic. You may be able to find online videos of some of these talks from these organizations as well. He is an engaging presenter.
Not to be flippant, but the answer is rather literal: the l.sc should appear as a small capital.
Depending upon the degree of variation between capital L and small-cap L, you may be able to use the same accent component as the capital, or you might want to draw a small-cap variant. But the form of the accent should be the same.