Ouf, that is a tough team to be taking over for sure. It's close but I think I would go with Kaepernick here. You won't be competing this year anyways I would guess so you might as well shore up your QB1 position for the future.
Try and see what you can get for Eli in terms of a trade for a RB and stay active on the WW to land a backup RB when his starter gets injured.
13 team Roto keeper league 12 F, 6D, 2G, G,A,+/-, PIMS, Hits, TOI(D), GAA, SV%, (Forwards are forwards, no distinction between L,R,C)
F) Ovechkin, Stamkos, Kunitz, Parise, Byfuglien, Backstrom, Little, Gaudreau, Hudler, Brassard, Girgensons, Nelson
D) S. Weber, Phaneuf, Subban, Carlson, Josi, Vatanen
G) Rask, Jones