Buying spare trimble small whip antenna and spare parts strategy in general

Hi guys,

In order to get some spare parts to go work in a a very remote place with no possibility of part order/replacements , I was wondering if there is any place (ideally in the EU) that would sell only the small whip antenna that usually comes with the classic trimble antenna base.

Moreover, what parts would you recommend to have spares of?

My setup will be

- R8s base

- R2 mobile

- TDL450

- external 12v battery

Thx a lot guys!