There are many cheap packages in the market by IDs, contractors, and even carpentry companies.
While they may be cheap, what you need may not necessarily be covered. Most just keep to the standard offering of a 20-ft kitchen cabinet in their package, even though resale flats are generally bigger and will need at least 35ft to 45ft of kitchen cabinets.
When considering a package for kitchen cabinets, make sure you have an idea of what you want for your hood, hob, and oven. As offered items in a package are usually the lower-tiered ones. Planning for a sink and tap that will suit your usage is also important as the offered sink and tap may not be what you need. And usually, you will only find all this out after a few weeks of using the new cabinetry.
Getting an itemized list for your electrical works can also be beneficial for you as the ones included are mainly just the basics. This way you can monitor your electrical budget as you add to it.