Price is for a PAIR of wagons.
Website default seems for Canadian sales. If you update your location (in the cart) it changes to UK pricing (gross) and reduces the p&p to £4.50. The VAT amount is also shown separately.
A perusal of Traveline gives current best journey times of around 90 to 95 minutes using bus NQY-TRU and train TRU-FMT with good interchange at TRU, so not sure what the gain will be.