From that moon on a stick list of requirements –
Citroen Xsara? Maybe the 2.0 HDi for economy and motorway mile munching?
Essentially the same car as a Pug 306 HDi but less desirable, and therefore cheaper. Probably half the price of an equivalent mk1 Focus.
Lots of space inside for bikes with the back seats down.
They don’t really rust and the basic mechanicals are rugged.
Parts are relatively cheap and plentiful.
HDi engine will do big mileage without bother as long as it’s looked after. No DMF or FAP on the xsaras either.
Main thing with them (and all citroens/pugs/renaults) of the post 2000 multiplex wiring era is the electrics can be ‘temperamental’.
But if you want to satisfy your requirements within the 1k – 2k band, this is one of your options. Can get a decent one for that money easy.