Best non-destructive race seat option? Options

[BillJ]

So kind of at a crossroads right now with the 6. Have just had the pans restored to original configuration and do not want to add holes back to the floor. Want to use the normal seat base arrangement for driver and fixed seat for passenger as per original in 1970. I don't take passengers on the track but may title and street the car on occasion. I don't mind having two sets of seats per se (one street one track) but definitely do not want to add back side mount and drill holes in the floor again.

Any advice from this fine collection of 914 gurus?

[eric9144]

Pole positions may be a good option provided they come with an fia cert.

Pretty sure they are stickered on the backs with the cert. I've seen the brackets a couple places, I know Patrick Motorsports sells them but I saw them elsewhere recently too, they're pretty simple, but easy.
https://patrickmotorsports.com/products/int...=15351791911027
Edit--you can see the FIA sticker on the drivers seat in the first pic