Hi babychee, as an Englishman I would find it remiss if I did not try and answer your questions to the best of my ability, or to be more precise the abilities of John Seymour author of The new complete book of self sufficiency.
The following is gleaned from his Stilton method. You state you have the process up to the stage below.
After placing curds in hoops or molds place it on a wooden board, the curds should now be cool, not more than 65 degrees farenheit or 19 degrees centigrade. Don't press it, just let it sink down.
Take the cheese out and turn it twice during the first two hours, then once a day for for seven days.
When the cheese has shrunk away from the sides of the mold take it out and scrape the surface with a knife to smooth it.
Then bandage it tightly with calico.
Put it back in the hoop and mold.
Take it out of the mold and re- bandage it every day for three days.
Then take it to the drying room which should have a good draught and be around 60f / 16c
Take the bandage off once a week to aid drying, leave it off for the day then put it back on again.
After 14 days remove the cheese to the cellar again about 60f/16c but not with too much draught and plenty of humidity.
Leave it there for approx four months before consdering eating it.
The book does not specify the percentage of humidity just ' plenty of it '
There is no mention of the inserting of copper rods or needles in this recipe but for sure a Stilton starter would help greatly.
There is a widely held belief that there was a tradition of inserting copper rods into the cheese to cause the mould this belief is firmly established in popular folklore in the UK but a recent archeological dig a Roman Stilton Mold was dug up and an expert from Stilton appeared on the program she crushed this folklore and explained the holes can be made with any material they exist only to allow air into the cheese and it's blue mould enter the whole of the cheese interior.
The best stilton is made from Raw Milk from the new rich Spring milk it is then sold in vast quantities to be consumed at Christmas which for me is the perfect maturation period.
After cutting off the top of the Stilton, it is traditionally scooped out with a spoon, scooping out towards the rind but leaving approx one inch of cheese and the rind in place.
When you have had your fill of plain Stilton, you can then add Port wine to the excavation you have made by scooping out the cheese. Dribble the Port gently and leave it to soak through the cheese at least overnight, don't drown the poor cheese, little and often is what's called for this again is scooped out with a spoon.
The feeding of the Cheese with Port over a period of time is called' Porting '
It is sold in ceramic lidded jars as 'Ported Stilton't expect to pay very high prices from top London stores such as Fortnum and Mason's and Harrods.
Hope this info was of some help.