I went to see this lot last year, but IRRC were in Low level dry storage near Derby.
No rust was apparent even on the bare disc brake stuff ups
Reasons I didn't buy anything after some research was for the following reasons;
1: The DOHC cam SV engine is too wide to go between the ZT spring turrets
2: The Roush Super charger set up might be a problem getting ECU to MAP to it.
3. The 6 speed gearbox is not as robust as the OEM 5 speed.
For 75 ZT Cooling fan work or resistors & General Servicing or just drop in for a cuppa! Give me a call in Sunny North Wales. People drop their shopping bags when I rev Mine