TerryCherry
Clearly if your parents act as your guarantor then their assets are in jeopardy as well. Probably equivalent as joint and several liability.
I don’t understand how 1500 hours flying experience is relevant?
Assuming you are on line (or were) as a FO in the RHS (MPL?) you are in the same boat as a CPL/IR FO in the RHS.
If you return to flying on the same type, the Operator will have a simulator training program prior to the LPC/OPC followed by sufficient line training.
A new type will require a standard issue Type Rating Course etc.