Few things to be put together, like survey or assessment of the location where you intend to install those homeless shelters,
- Come up with design which is very cost effective
-Market survey [materials, you need to know what type of material you will use to install shelters]
-who are the beneficiaries?
-is it sustainable project[can you maintain the support? if yes how? then pls do small research] to have kind of bench mark to guide you on the way forward.[certainly funds are very much available but you need to do very details assessment and
When you present the project proposal to donors, they will ask you all these small small issues,