well, first you should put in more gold. 1.3mil for a week, 1.8mil for 2 weeks, so a max of 75k will be used each day. with 100k, you'll only be getting 10k worth of stuff for the first day.
have lots of coal in your inventory.. abt20 use your barrel of tar on the still. add 2-3 coal in the popup window, turn the right valve up once. then turn the left valve up then turn the right valve up do this till both sides are maxed. then add coal till the right valve arrow stays somewhere below the green portion. keep doing this till the green bar at the bottom fills up completely. then close the window once its done.
flax is pretty good.. getting to 60 shouldnt take you more than 2 days or so. you will lose money doing dhides if you alch it. red and black dhide sets sell for quite a nice profit however its troublesome to wait for a buyer.
you can craft 1k nats in 20mins pretty easily if you've 91rc and are using the abyss. now since he's 40rc.. he cant do it. he could've used the new zamorak altar thingy.. but i doubt he can make 1k in that amount of time. its possible with nat running.. however at 40rc, he's not able to use the big and large pouch, therefore only able to carry 35ess per trip. which means that to make 1k nats every 20mins (2min per trip) the crafter is giving him close to 2.8x nats per ess. possible buy unlikely.
if i remb correctly.. the price of iron at lyeta goes to about 15ea after you buy abt 200.. you're better off buying it.. then using the time saved to earn back the money.
How the hell can you go that fast? I timed it and the best I could do was 1k per hour. Not worth it in my opinion (70 crafting here). Greetings, Zou Lou. well i took about 1min05sec per run on average.. (65sec) 1 hr (3600sec) gives abt 55 loads.. which is abt 1550 flax. you just gotta know how to play around with the stairs.. then it should b very fast.