Well he's certainly expensive. This coat is from 1973 so I'm not sure how useful it is as a reference point. But the styling is very good on this piece, great lapels, and very cool details like moleskin lined pockets. Buttonholes are very tidy. I mean it's held up phenomenally well and has obviously been used.
I've got a Maurice Sedwell suit that I bought a few years back on eBay too. The rise was huge and I took it to a bespoke tailor in London to get it to being wearable, which was fucking expensive, not recommended. I just loved the fabric, kid mohair. And the quarters on the jacket are still a bit off, very closed. I don't know whether those stylistic details are a house style but if I was going to get Savile Row bespoke (other than my Cad and the Dandy suits) I would go elsewhere. Like Chittleborough & Morgan - they do such amazing stuff, instantly recognisable and elegant and apparently their attention to detail is second to none.