Arzakon

Hi there. First of all, PoE is just awesome. So now, here is the question. Is there any way to get Cladalíath while soloing the game? I have a GoG account, so I don't care about achievements, yet it feels... well, wrong, to say the least, hiring two adventurers just to get the weapon. I have a lot of figurines, but I've cleared Lle a Rhemen and I'm not sure if it's even possible to use, let's say, the wooden beetles while on a simple combat to place them at the platforms so I can craft the spear. I now it's somewhat gamebreaking (not OP), because you're supposed to use two witnesses, not two creatures, but I really love that spear and I want to know if there's any way to get it without companions. Thanks in advance.