right now im routing a run for 1-50. i got a few questions about that:

• there is a priority transport to the personal ship. its not in the legacy and its not a buff, so am i allowed to buy it? (its on the galaxy/star map.
• if you have a stronghold and you could use it, are you allowed to use it, or not? im talking about the dromund kaas one, there is a neat trick with it....
• am i allowed to use a mount from my collection? i know "No use of guilds or outside help, mail, cartel market or collections.", but thats a grey thing, as is the use of stuff you get from the mail after the creation of the character, thats why im asking..
• there is a double xp event right now going on. but there is an item, that takes away the double xp buff. if i use it, can i submit the run? i want to use the holidays to maybe get a good run. the item is called "white acute module" and can be bought for 0 credits on the fleet. id need to create a character before, then log out, mail the item, log back in to the run character and get the stuff from the mail. would that be technically be allowed or do i need to wait until the 2018/01/01 to try the run?

thanks in advance, i hope to get the speedrunning up a bit in here :D