Just had another look at “CarsfromJapan”
https://carfromjapan.com/cheap-used-toyota-celsior-for-sale?minYear=1990&maxYear=1994
They only have 4 on sale between 1990-1994, the first one is very similar but only 9000kms at $16,665 (£12,000) shipped to Bristol.
As the car is less than 30 years old add 10% duty £13,200 and then 20% VAT £2640.00 totalling £15,840.
Throw in another £500.00 for other admin charges, MOT, registration and we’re at £16,340 for a car unseen in the metal until it gets here, no guarantee of paperwork regarding service history and major headaches if it isn’t as described.
£17,000 for a UK spec model with FLSH and your consumer rights intact now sounds like a bargain perhaps.