Loads of good orion bases still about. you'll get a solid ghia and change for £500. Make sure you get one with a good back bumper though, you just CANT get them. anywhere. seriously.
Heres mine i built last year, and am still fixing problems with.
https://passionford.com/forum/pictur...mk2-orion.html
*edit*
you'll always have the slight sleeper look with an orion too, which i absolutely love.