WTB Wotc sealed 1st ed booster boxes

Hi all, Rethe here, looking to buy some sealed 1st ed booster boxes.
i’m looking to buy any of the following if i can get more than one from the same seller that’s a bonus!
please note i live in the Uk!
without further ado here are the prices I’m hoping to pay:

1st Edition Team Rocket booster box - $1300
1st Edition Gym Heroes booster box - $1200
base set 2 - $800

please don’t hesitate to contact me
cheers

NOTE: Increased how much I will pay across the board