You buy the CCUs then have to apply them in order, so you'll have the base ship A, then CCU from A to B, then CCU B to C, then CCU C to D etc.That's what I was thinking and then I'll upgrade the Mustang at some point.
The ccu route has changed slightly since posting and requires a few more upgrades but is slightly cheaper.
If I 'add to cart' from the ccu website and then just pay on the rsi website it does everything (all the buying and upgrades) automatically and I'll just end up with the cutlass?
Also, the cutlass is the one to get for me isnt it? Jack of all sorts and a good starting point to the game for a player who keeps forgetting his helmet after I have travelled to it........ Twice
Nothing says you have to apply the whole chain in one go, so you can dive in to the game and try each ship / vehicle out as you go along but you will need to shut the game down and start it up again and maybe wait a little while for each new version of your ship to show :-)
The Cutty is a very versatile ship you won't find lacking when you need to do stuff be it move boxes or people. Everyone has subjective views on ships, so I can't tell you it's the one for you but what I can say is it's the one for tens of thousands of players so your making a good solid choice.
MPUV Cargo Warbond 
I'm such a sucker to pay extra for a bloody paint job 
