Which long range rifle??

[sikahunter]

i am going to purchase a long range rifle but am unsure which to get.
my options are...
Sako trg 42 in 338 lapua mag or
Blaser lrs2 in 338 lapua or
HS Precision tactical in 338 or possible a big 7mm( 404 jeffreis)
the other option is custom ie Kreiger/tru flight barrel, nesika or barnard action on a macmillian stock.

which do you rate the best or are there any other options.
We need to remember i am in New Zealand and we don't have the range of options.

cheers for your input.

sikahunter