Welcome to the madness! My car is a CMC that I built and have assembled an owner's manual for my own use (or a future owner). Therefore, I do not have Vintage specific instructions, but your questions above are a little more generic.
The frunk is pretty simple, fold down the prop rod, close the lid and push down firmly until it clicks into the fully closed position. Pull the knob under the dash to open.
For tire pressure I tend to run around 28-30 PSI. A little higher in the rear can help handling in corners by limiting tire roll. A little less in the front can soften the ride, there is not much weight up there.
For the top, Jim Ignacio aka @MusbJim has made a great set of instructions for folding and storage. I condensed the instructions into a pdf for my own use and have attached.
Also, here is a current post with links to useful information about using the top.
Hope this helps. There is a lot of useful information that can found with the search function above and the folks on this site are very helpful with questions. Congrats on the car and enjoy!