Only members can use construction to make a house on runescape and you cannot get a castle so unfortunately non-members cannot make one but Jagex created a new skill for non-members so you can do the new skill if you are a non-member
sword fish is the best non members food
the only nonmember place i know of is south-east of varock by the mining site at the wall add me ~ jupitertree
no you can not sell your house on runescape.
Not directly at castle wars, but nearby-ish yes, keep heading east along the castle wars wall.
Private Server or official website does not matter. They can be found in the farmers house north of Lumbridge Castle, or you can buy some on Grand Exchange. (good luck with that)
Yo momas house
By fighting.
99k
no
sword fish is the best non members food
There is a boat west of the Al-Karid bank. Take it and you will find yourself on the island.
Barbarian Village, Lumbridge (near goblin house opposite lumbridge castle)
Dummies are located North of Lumbridge castle and East Varrock in a house across from the bank.
go to the house where you start vampire slayer in draynor villaige go upstairs open the drawers collect a full inventory of garlic deposit in the bank repeat :)
Ftp players will need to buy it off another player, who's most likely member.
Either a partyhat, or a Christmas cracker - check the latest prices, they tend to change.
You can't. The only "dragon" items you can even see as a nonmember are corrupted dragon items or green d'hide outfits. All other items show up as "members item"