Congratulations looks like you got a 67 nice and cheap :D
I agree with all the above about the boot floor, I am thinking it is probably more repairable than you might think, I would expect right under the window due to neglected window rubbers, and the boot floor sides (the inner rear wheel arches) which are a common spot. Its quite uncommon for the entire flat boot floor area to be rotten, you would be very unlucky. But then it is many years since I had a british beetle, and they do suffer more rust.
So the answer is both good and bad, Yes unfortunately 67 parts are more expensive, the same as any beetle with 1 yr only special body features, usually good 67 doors/bonnet etc will be much more expensive than even earlier 60's panels due to their limited availablity.
But, on the upside, you now have the car, and it will only appreciate if you look after it well as beetles are slowly rising. A 67 will always be worth something, there is quite a niche market for them.
So it is worth you hanging on to :wink: And having some learning fun with along the way 😃
There are a couple of websites devoted to 67's
This one has good literature/info ( obviously be aware of different country specs)
https://www.blackbeansource.com/1967/ I dont personally know very much about 67's but my partner had one, we also have quite a few 67 parts for sale, but they are'nt cheap.
Your car looks very good, try to keep all the cars original panels and repair them rather than replacing them. On a 67 its probably the cheaper option. If its wings are original, whatever you do, dont replace them with repro's!! Even if they look tatty. Genuine wings are 100% heavier and better.
First off you need to find a good reliable person to do some intermediate welding repairs you might need, and fit any new window rubbers your car needs, just to get it dry inside. Wet floor/damp cars are horrible!! And get it driving, everything else can follow later. A car with a running engine is so much better for motivation!
Join a good local club, or go to some shows, look for 67's, find and talk to other 67 owners. Being female will always break the ice :wink: :D
Anna
"it'll wreck the patina you haven't worked so hard to create" - 50Karmann