Long Term Loan Wanted for Gentle Hacking

I have my own land with field shelters and a large stable. I have a good natured companion Shetland pony. I’m an older rider who has had horses for the last 25 years. These days I would like the opportunity to ride a quiet, confident horse by itself or with company, for gentle hacking down the lanes in South Shropshire. An older horse up to 25 years would be considered.