We first used Elston's stuff 22 years ago, at that time he had the baddest shit on the planet. His NASCAR CUP headers would outperform everything out there, the workmanship was unreal, and his price was only slightly higher.
Probably been 15 years since we bought anything from him, best I recall a set of Tri-Y's were around $2800 then, hard to believe with inflation he can build them for $3500 today.
You could try Steve @ Profab, I doubt he will be any cheaper, he's a great guy to deal with.