sourcing an input bearing/seal for 5 speed gearbox

Hi all, so my 1992 5 speed manual gearbox is leaking a fair bit of oil from what looks like the bell housing area - I suspect it is the input shaft bearing/seal. These are now discontinued and I wondered if anyone may have an aftermarket replacement or a new old stock bearing/seal. Euro3s has a rebuildable billet option but is out of my price reach at the moment(they're around $350/300euro plus shipping) . so hoping to find a cheaper option .

I am in the UK.

Thanks

Try revenge https://www.rvengeperformance.com/