HHSMTB's

Cotic Solaris? OnOne 45650b if you don't need plus tyres.

basically want something that's not too long and low, big triangle space for a proper framebag, space for chunky tires and in steel innit

Oh. Switchback might be a bit too long and a bit too focused on the rowdy / gnar.

Stick a 120mm fork in it and you could probably get away with it though.

basically want something that's not too long and low, big triangle space for a proper framebag, space for chunky tires and in steel innit

I'm on the look out for the older Genesis High Latitude for that reason

Easy enough to get a third bottle cage added, an eyelet for an internal dropper or maybe even have the rear converted to 12mm thru. Should be reasonably cheap too due to 'older' style geo

Would a High Latitude LT be suited for you?