I am with BEagle - you have either been trained and checked on instrument flying or you have not. A basic PPL does not cover ILS and therefore you should not do it.
The centreline of a runway at 8 miles is one of the busiest pieces of airspace there is.
If you are VFR then your chin should be firmly planted on the glareshield.
Cheers
WWW
ps The reason BEagle is of the view that he is nearly always right is because he is.