I thought this was posting in the focus section, that the ones who use this section are a different bunch of people who wouldn't have seen the other post.

As said if it needs head gasket I would just have it replaced, but then it has potential other big problems that could bring the bill past another £1000 + and then if I do all the big jobs I may as well do all the small jobs which could add up another £300, however seeing as it has already had £2,000 + on repairs in under 2 years and the retail value in good condition is around £800 - £1,000, I'm wondering is it worth it ?
if thnis steral seal would work would be great