Interest rates
How rates compare with regular mortgages; fixed vs variable terms. [Add current rates with a checked date]
One-time setup costs
Appraisal, independent legal advice, lender setup/admin fee. [Confirm current figures with lenders]
Prepayment charges
When they apply and how they're calculated; exceptions on death or moving to care.
How costs add up over time
Worked example using the loan growth calculator.
How to keep costs down
Compare lenders, borrow gradually, make optional interest payments.