Riccardo had a bloody good point about derailing the thread. I removed my comments for being off topic.
As for base stations, I strongly recommend having at least one. VR without positional tracking is terribly crippled; I already have a headset (FOVE 0) with similar resolution, full RGB, and eye tracking, that I don't use mostly because the tracking is not so good. A secondary reason is that they don't have tracked controllers (which I don't use anyway in Elite).
I am personally less affected by this bundle question since I backed for a full bundle and have a Vive set, but it certainly is weird to have them excluded; I was under the impression that these were Pimax base stations, even if they're manufactured by someone else. I don't see a good reason it couldn't be counted as bundled for the kickstarted headsets, considering the backed bundles are already shipped split.
On the other hand, the stretch goals and voucher offer are quite generous, and with a third party involved for making the base stations they will have higher cost, so perhaps it would be reasonable to have it be a discount for a base station rather than cover it entirely?