I have seen a couple, cant find them for the life of me but they helped but im stuck at 360 right now. So i will try and help the best i can.
What i did was use up all the fel iron you have stored up on the new recipes you learn. I think the first one ( fel iron belt) only take 4 fel iron bars... its pretty easy to go from 300 to 330 with just the fel iron sets.
After 330 you are going to start using adamantite plans. These are also pretty simple since they just take adamantite bars also. Just make adamantite cleaver, rapier, daggers and such until you reach 350 or so.
At 350 you can make adamatite sharpening and weight stones. You get these from the cenarion refuge in Zangermarsh. These will get you from 350-360. And that is where im at now.
I did get a plan from the crypts dungeon called felsteel gloves. These are good plans to get since they start and 360 and could probbaly raise your skill to 375, ill try it out and get back to you.
Hope this helps a little, but really just do like you did to get to 300 take whatever plans are orange and dont take that many mats and craft the hell out of them. Even if one is yellow but takes a lot less mats, go ahead and try your luck, you have about 50/50 chance from what i have experienced.