The aircraft had the Vaslan mod and winglets fitted 20 year ago. It probably has relatively low hours on it since it ‘only’ spent 15 years in commercial airline service with TAA before being converted into a VIP config.
M-FAHD could be the last regular 100 series visitor to Southend, as the other one VP-CJN is at Southend and up for sale. VP-CJN is 41 years old, so I would imagine that its likelihood of being sold on isn’t great.