Gelding, 18 years old, in good condition

I unfortunately need to sell my Oldenburg gelding due to a breakup.  
He is a lower-ranking horse and would ideally be placed with older geldings.  
He hasn't had good experiences with mares so far.  
He is a bit head shy, but not excessively; he only kopps after eating.  
He will turn 18 this year and is in good shape for his age. He has a decent amount of go, so he’s not suitable for beginners.  
Otherwise, he is well-behaved, loading is no problem, and he is looking for the best possible home.  
He is approximately 16.1 hh and can carry larger riders, but not very heavy ones.  
This is not an emergency sale, and it’s very important to me that he finds a permanent home.  
Since questions about his health are common given his age, I want to clarify that I’ve owned him since mid-2023 and he has had no health issues with me.  
Because he hasn’t been ridden for a while, he needs to be re-started, which I have already begun.  
Of course, I have photos and videos available.  
What is important to me…  
As a potential new owner, you should be fit and active yourself, because my horse can’t just be left standing; he needs tasks and movement.  
I would like to know if he will find a final home and how he will be accommodated.  
I want him to have a place in your heart.