As promised, a quick update on the free-fly: You won't need a voucher this time, all you need is that account, and then you download the RSI client, through which you log in and download the game (likely won't work until Friday 1600 UTC)
https://computerfairi.es/@leinir/109342210895530994 has a bit more detail, and https://robertsspaceindustries.com/comm-link/transmission/18975-Intergalactic-Aerospace-Expo-2952-Free-Fly has a bunch more :)
Another little update here - today's the last day this particular package is on sale. There will be more in the future of course, but if you've been considering it, it'll be going up to it's full intended price later :) (it used to say the 8th on the store there, but there was some confusion about the wording, so they changed the description and the date disappeared, but i've no doubt the reality remains)
An update on that recommendation for what ship to get - the introductory offer on the Drake Cutter starter game package ( https://robertsspaceindustries.com/pledge/Packages/Cutter-IAE-Starter-Pack-Warbond ) is currently by a long way the best value starter package, at least until the 8th of December, when it's due to increase up to its intended full price. Also, if you want to nab Squadron 42 as well, that'll be offered for an extra 20 quid at checkout (it'll look weird when it's offered,but it'll become 20 when you add it to the cart) :) as always,ask!