The one thing about guild houses that does no make sense to me is they have a single spar and not a guild spar even though a gh it's aimed at guilds specifically , hence the name " guild house " in my opinion :
• A guild spar ring should be added to one f the guild houses
• The single spar arena moves to a player house , as player houses are aimed at individuals. And the guild spar ring would replace the single spar in gh
• Maybe ( probably verry hard to do!) replace the single spar with guild spar ring and make single spar sell for like 20 k at a store.