With the retirement of JR Kyushu's KiHa 66 series DMU, they will be selling used railway tracks from Omura Line along with seat number plates from the aforementioned DMUs starting on March 2nd and March 6th on a first come, first serve basis instead of the usual lottery based sale.
10mm Piece + Seat Number Plate (Short) w/ display case: 22,000 Yen @ 109 sets
10mm Piece + Seat Number Plate (Long) w display case/: 23,100 Yen @ 80 sets
430mm Piece + Seat Number Plate (Long): 39,600 Yen @ 10 sets
The pieces of tracks will be treated with anti-corrosion coating and according to the site the 430mm piece will weigh 17.5 kg (so around 38.6 lbs)
https://jrk-kyushutabi.shop/new/2022-02-25-140002.html 