One reason why Oak and Basalt are soo expensive is that the rare wood (soulwood) / Stone (feldspar) are trash, so only the base harvested items sell well.
Here is something I will share that i used to use when crafting to earn profit on trader, some mat prices are a little off, but its mostly accurate. Dont update it as i used to. First page is where i would entre the base cost of mats (Even if i harvested, i would include). Other pages have the breakdowns etc. 2nd page even includes my 25% i would add on for trader sales. Base mats like Darksteel and such are auto calced based on other values input
Interesting to note, an IBIS cost is actually only 606G, most people selling on Set are charging 1200+ and using PUGS to craft, thats a nice profit of 500G + for the crafter, while everyone in the raid gets nada. T3 base cost is 1200ish. So your best bet would be to gather the mats from the trader (or harvest yourself if you want the profit) and do some Ibis runs.
https://docs.google.com/spreadsheet/...rive_web#gid=0