The FP Manifold, the Stainless Steel O2 external WG dump, TiAL WG are worth $500-600 used alone.
Throw on top a good 3561 (More efficient than an SCM61) all for $1000 is a great deal.
And the turbo spools closer to 4500@26psi looking at your old graphs from DB. And it had a decent boost leak that day so we stopped tuning and turning up the boost. It spooled closer to 4200RPM for me back in the day.
I can vouch for that setup.