I saw this on line…..

Monkey puzzle tree if its under 2 metres high the best thing would be to dig a trench around it this now and back fill with friable compost and then plan to move it in the autumn. This is to induce a more fibrous root system before it gets moved. The best time to trasplant it would be June next year. Being an evergreen and not having a dormant season as such, it might be a good idea to to clog up its stomata (the breathing holes in the leaves) with an Anti-Transpirant spray.This spray would be sprayed on prior to the actual moving of the tree. It still allows the tree to photosynthesise and has no long term effects. Once moved the tree would need to be watered during the first year of establishment.If you are short of time then dig the biggest hole possible and transport as much of the root ball as you can.To the back fill add some bonemeal and good quality compost.The bottom and sides of the new hole should be forked as much as possible so that the roots can grow away well. Water well.

Ooh, don't envy you that job, I got several wounds from moving a 4 foot one from a pot to the ground, despite protective clothing. I decided afterwards I should have worn a motorbike crash helmet with a visor and thick leather clothing top to toe...

At that size, it will have put down a fairly deep taproot already, as well as widespread lateral roots, and the taproot hates to be disturbed, but you can either follow Loosestrife's suggestion (though I don't think the spray he mentions is actually available here),, or wait till October, dig a very large deep, wide hole where you want to replant it, then dig out a very large rootball and move it, if you can actually carry the size of rootball you'd need.

Other options, though they'll cost money - hire a company to do it for you (such as Ruskins Trees) or remove the existing tree (I'd pay a tree surgeon to do that ghastly job) and buy another one instead...