u/YodaLoL

I initially intended to do mahogany homes to 99 con, but after going dry at CG I now have a 200M cash stack that I'd like to put to use. I'm starved of mahogany logs/planks atm and my only method of acquiring them is through Miscellania (max workers on hard wood) and the occasional PvM drop. At this rate it seems like I'll have planks for 99 doing tables in about 5 months which is a bit annoying. I'm wondering, are there any other methods of acquiring planks reasonably fast?