Higher wages across the board, starting with minimum wage and lower band/tier civil service and public sector roles
That would require an increase in public spending to fund.
An investment back into manufacturing and trades to provide unskilled jobs and make us less reliant on global trade/at the mercy of international war
More public spending. This would also increase our reliance on global trade as we'd need to import more raw materials (the UK isn't a particularly resource rich nation in terms of ores and minerals), and unless you're going to apply huge import tariffs or force businesses to buy domestically whatever you manufacture would have to be competitive on a global market to sell.
A greater investment in education, transport, and health
More public spending.
Building more schemes of flats with one or two bedrooms, looking at current housing association homes and redistributing larger homes from single occupancy to family occupancy
There's a reason we moved away from building tower blocks including public opposition, suitatable land availability, and construction and O&M costs to name a few.
Making council houses not a home for life but temporary and means tested.
Im not sure decreasing housing securtiy is a great ambition tbh but, how would that work in practice? You reach a certain income threshold and get kicked out? I'm sure that wouldn't cause any problems...
Make it impossible - not just hard I mean actually physically impossible - to choose to not work if you are capable.
How would that work in practice? You'd first need to develop a 100% accurate way of assessing eligibility to work and then, presumably let the tiny fraction of people who still refuse starve?
Make being on the dole actually feel like a job, maybe even get them to pick litter or become childminders
Then it wouldn't be dole money, it would just be work and you would need to pay those people at least NMW, unless you're advocating for a return of indentured servitude?
In short it looks like your solution is just lots and lots of public spending with some punishment policies for those you think deserve it.