Think you should part ex it with a black ph1 172, wonder where one of those could be with an owner who'd love a RB 182 one day
And don't even think abotu an Astra GSi, drove one last year thinking I might replace the 172 with one, it was horrible. Seats were nice, engine nice, everything else bad. Gearbox was the worst I've ever used, hated it, that alone made it a no go. Got back in the Clio after and it felt so much nicer, not wishy washy, nice and direct