Not bothering with them, that's where.
Complete madness reigns, pre moons 5, 6, 7k, 68 transitionals even more. As for Ed White's, a couple of years ago 3.5k now, 10k minimum and keep going north. Even flat dial 70/80s ones 3 to 4.
I too wish I'd kept the ones l've had, but if me auntie had bollo.......etc.
Luckily, I kept my 65 Ed, minter 66 & big logo caseback 69. Never see them though as they are in a vault!
ALL the vintage speedy fun now departed, £800 eBay jobs a fading memory. Leave it for the 'investors' to hoover em all up & see where they end up once the party's over.