Chinesium rails - value for money?, or to be wary?

[Doddy]

I've stumbled randomly across an eBay advert (eBay, UK, item 112812638856) which advertises 20mm square rail at 2 of 400/700/1000mm (6 pieces in total), 12 carriages for the rail, and 1605 C7 ball screws and balls at the same lengths of 400/700/1000mmm (and blocks and couplers).

All for around £370 including delivery from a German warehouse (so no import duty).

Am I being naive here, or is that a pretty good price?

Okay, it constrains my design for a machine a little (from 1200mm to 1000mm) and would have to source a second screw/nut for the 1000mmm) but it looks an attractive price to get the major bits for a small hobbyist router intended for cutting aluminium. Or, are these prices (including the EU location) pretty much achievable elsewhere? (I know I struggle to get remotely close with UK suppliers).

I'm inclined to buy, but if anyone has any words of caution I'd appreciate it before I spend this month's wage.