How do I get my table saw over my workshop door threshold?

I'm not sure if this is the right place to ask, but surely someone here must have had this problem.

Next week I'm taking delivery of a table saw on a pallet, which weighs around 300kg.

My workshop has one double door entrance, but the door is about 20cm higher than the ground, and has a normal door frame threshold too.

I'm wondering how to get the table saw inside this workshop.

Do I build a ramp down both sides of the threshold and use a pallet truck?

Do I build a platform extending across the threshold and use a pallet truck to lift the pallet onto it?

Are there companies who can do this sort of thing for me?

I'm in the UK.

EDIT: photo of the threshold: https://imgur.com/a/ZXjTVHS