For logs, you can cut down any tree that may be on (or defensible-by-way-of-feigning-ignorance near) your property. Woodcutters automatically generated one log per turn, so you’ll probably have to deforest a pretty good-sized area to create a large enough supply.
Planks, on the other hand, are probably going to be less numerous, though not insignificant; I recommend buying some wood planks from a lumber yard if you don’t have the tools on hand.
You know, the more I think about it, it would probably be easier to reproduce the components at the same scale as the packaged game!
The game just uses cardboard chits for all of the resources with the icon for the good printed on both sides; you can accomplish this same thing with a bit of full-page A4 sticker sheets printed, stuck to a piece of A4 chipboard, and then use a paper cutter or straightedge+hobby knife to cut them down into squares.
From the 3rd edition and on, the transporters are meeples of the appropriate shape, but before that, they were large wooden disks in the player’s color; perhaps 3cm in diameter or so, and a sticker stuck to it showing what type of transporter it is.
If you are printing out terrain layouts, I would just recommend to laminate it (if that wasn’t already obvious).
I have scans of most of the game components other than the terrain tiles.
(I understand now RossM doesn’t need it and has other plans, but the Vassal module is a simple zip file containing all the original source art, somewhat scaled down but still probably better quality than any scan. I think I used pillbox’s scans for some expansion content that Splotter didn’t supply: aeroplanes, and the like.)
You are going to need both quarries, I assume, so at least one bridge is compulsory. Might as well make it the bridge that enables stone production a turn earlier.