Hi,
Is that picture with the reservoir moved over?
That looks like enough space. I'm wondering if you are using the oil filter tool? Example
Thanks, Joe
Given that you admit to being "not mechanically minded" I suggest you get a specialist to do it for you. Tinkering with a car's suspension without knowing what you are doing is not going to end well.
I know its not an Audi but this 'beauty' has been in Argostoli, Kefalonia for many years and this year it has actually moved.....whether anyone is going to restore it or whether it drives on a daily basis I don't know but I do love the effort they have put into the bodywork repairs 🙂