The cost of equity argument seems odd to me. There is no possible justification for their current valuation unless you think they have many accretive redevelopment opportunities.
If you believe that, you should want them to retain capital to pursue these opportunities as fast as possible. That has the side benefit of reducing the risk of significant poorly timed dilution if Sears files early.
If you don't believe they have good reinvestment opportunities, why would you buy this? The answer is you wouldn't.