The BOM for Rev1 of the Weatherstation is available here from Octopart. As some comments on this project have noted, the CCS811 sensor may be redundant, since there is the BME680 sensor. Any input from others is greatly appreciated.
I should probably also mention that this board is currently just in the design phase. No boards have been actually ordered/built nor have any of the components been tested together. All of the sensors have been used in the past on their own breakout/dev boards and have prebuilt libraries for Arduino, so I have fewer concerns about it functioning if designed properly. Unfortunately I do not own any of the components needed to test this. I am currently in school and crunching for the last two weeks, so there will be limited work done on this. Hopefully I have the time/energy/money to either assemble the appropriate breakout boards to test this assembly or order and built this board.