I could try sell investment property but I would only expect to get max €160,000 in present market
I would appreciate any advice on what my best options are based on the above?
If possible, I would sell the investment property even for a reduced price of €140K or less if necessary. Given the substantial equity you have in your PPR the bank might agree to the shortfall being added to your PPR mortgage.
Your current mortgage repayments are €2230, paying off the investment and adding the €40K shortfall to your existing mortgage should only increase it by €227 (assuming 19 years left), new monthly payment €1527, a reduction of €703.
Apart from subsidising the shortfall between rental income and mortgage payment, there must also be additional costs such as insurance, maintenance, letting agents, PRTB, NPPR etc that you would no longer have to pay if you sold the rental property.
If you are struggling now it will be worse at the end of your fixed term when your rate increases. Further salary cuts, upcoming budget, unexpected expenses etc should also be considered.
There’s always the possibility you won’t be able to let the property, or even worse, you could have tenants who just won’t pay.
A rental property is a burden you could do without.