Spa 6-hour driver options / advice

Hi all - I'm a regular on the forum and have raced 6 seasons now, in both GTs (modified midget, MGCC) and single-seaters (formula ford, HSCC). I'm mid-pack in the FF (which is competitive) so neither stonkingly fast nor slow.

I'd really like to get into doing some endurance racing and have a particular desire to do the 6-hrs at Spa which I know a few on this forum have raced at. My main issue here is that I don't have an eligible car and nor do I really want to buy one on my own at this point (read I can't really afford one) .

So, I'd be grateful for any suggestions as to how I could get to race at Spa. Are people aware of any 'arrive and drive' options, or ways to buy into a drive for a few events that would include Spa. I'm based near Cambridge and could be open to sharing a car (including shared ownership) so please reach out if you have a suitable hole in your driver line up for 2024.

Happy for any choice of car - you can probably deduce from earlier comments that i don't have my heart or wallet set for a GT40 seat.

Thanks in advance for any advice, James