H doesn't have disabilities that prevent him working and will have worked before on £70k with at least some of those conditions. W's position that H could earn £70k maybe unreasonable but expectation will be that he seeks treatment and does something. H hasn't worked because he hasn't had to because of W's income but that will change because of divorce. If not, will be expected to live on benefits; W very unlikely to be expected to subsidise H income if only earning £49k herself.
Child needs will be dependent on who parent with care is. If 50/50, no CMS. Court could order maintenance for child but can be overturned after a year. This is not an SM case, W doesn't earn enough and H could earn and is choosing not to (there is no way a court will accept work is impossible with the conditions listed). Also, anything W could afford to pay would simply erode H's benefits. H would almost certainly be allowed to claim the child benefit and child related universal credit however, provided it is shared care.
Housing needs are a 2 bed flat each. If there is sufficient equity sale and split will be outcome, maybe slightly in favour of H (with asset split overall 50/50 using other assets). If not sufficient equity, still most likely outcome is sell and split. H has no realistic prospect of paying a mortgage or maintaining a house on their income, W doesn't earn enough to pay SM and H would therefore be better off claiming housing benefits and renting.
Outcome is equitable because neither party earns a lot and will get a fair share of marital pot. Holding W to a Mesher Order or forcing her to pay SM that wipes out H's benefit claims would result in much more inequitable outcome. Plus H can manage their conditions and work and is choosing not to. Outcome would be exactly the same if W was the one choosing not to work.
Guidance on Needs definitely doesn't support maintaining lifestyle. Care needs to be taken when reading to absorb the whole document and not to cherry pick. Lifestyle is normally impossible to maintain after divorce and standard of living during marriage is "not the lodestar." Weaker financial party normally expected to adjust to a lower standard or living over time to achieve desired independence.
H has no chance to recover because they won't work. It would be unreasonable to hold W back forever because of that and court will seek a
Clean Break as soon as possible.
Most likely outcome is H will be given larger share of
FMH (perhaps 60-70%), other assets used to return split to around 50/50 and clean break ordered.