This post is not surprising - if anything eight months seems optimistic.
BA are negotiating with all suppliers other than fuel and aircraft lessors - for a 3 month interest free extension on settling bills
Recent work undertaken in March/April by a BA contractor was not settled in full until late September
The comment about aircrat values falling is true in the short term - BA will need to consider that older aircraft in their fleet will end uo potentially being parked or at best with dramatically reduced sale values - 50% would be my guess.
A widespread sale and lease back of owned assets would unlikely appeal to banks and leasing companies at this time of uncertainty.
As with Virgin - the question has to be - where will the cash come from?