I rather like this and good value too.
www.ebay.co.uk/itm/VAUXHALL-ASTRA-MK2-C20XE-THROTTLE-BODIES-26K-SUPER-SOLID-NOT-C20LET-GTE-1989/114665415036?hash=item1ab297617c:g:weUAAOSwOnVgGv4s
www.ebay.co.uk/itm/VAUXHALL-ASTRA-MK2-C20XE-THROTTLE-BODIES-26K-SUPER-SOLID-NOT-C20LET-GTE-1989/114665415036?hash=item1ab297617c:g:weUAAOSwOnVgGv4s