If you have equity in your property why not borrow against that equity?
The upside is that you keep your dream home, the downside is you will have to keep paying the mortgage during your training. Although if you have enough equity, you might be able to pay for your training and keep the mortgage serviced.
Doing it via modular or integrated? There are plenty of threads on this topic. Up to you really, but doing it via a modular route allows you to be more flexible. Should political/world situations mean that aviation will take another beating you can put your training on hold and go off and find a temporary job before commiting large sums of money at say an IR.
It isnt easy, the ground exams will drive you mental, it is important to get things squred away before you start the flying section as any external distractions will only cost you more money and time.