you’ve probably described every bike I have had, but just to give you an idea –
Last bike was an Orange Crush pro, 2021. Lovely bike, capable of Lakes downhills/Trail Centre stuff and some old school XC. Cons- low BB.
Also had Cotic Solaris Max (first Longshot geo). Nice bike but didnt get on with it.
Cotic BFE – Mk1 – Probably the best H/Tail I have ever owned.
Salsa MUKLUK – Fat Bike (yes I know) but the most fun I have every had on 2 wheels.
ragley MMMM BOP Mk 1- in that green. Lovely bike. Could handle anything
i know where you are coming from in regards to costs – some steel stuff is just nuts in price.
You Could consider – STIFF Squatch, Trek Roscoe, Whyte 909/905