A 4 yo well-bred Zangersheide stallion

I am offering for sale a 4-year-old pampered Zangersheide stallion by Taloubet Z x Dominator 2000 Z. 
The horse is currently stabled near Prague in a 12/12 regime, on a pasture with geldings, in a stable in the part with geldings only. 
He was brought in 2023 from NL to CZ and purchased by me in 2024 as an investment for a private sports stable, with the understanding that as the owner I will bear all his costs and the stable management will take care of adequate training and breeding. Unfortunately, I am not satisfied with the management of the horse's training. 
He is unusually calm for a stallion (calmer than many geldings or mares) and trouble-free to any handling. He is not shoed, care by a farrier, veterinarian, physiotherapist without problems. Dewormed in November. AIE negative, vaccinated, everything traceable in the license. 
When passing around the mares in the stables, he naturally shows himself as a stallion, but a firm and consistent hand will handle him here too. 
The stallion is saddled and loves to show off. He definitely still needs to grow and gain muscles, but at the same time adequate training under an experienced partner. 

If you are interested in Tall, I will be happy to show him off to you. Unfortunately, I do not have sufficient knowledge to show him off under saddle, which is evident from the above.