this is my first seasonal event in this game so please bear with me if I don't yet understand how some of the stuff works.
I'm Lvl 25 atm and my weapons bench is Lvl 10. The best I could craft right now are the Lvl 35 (second tier) Halloween weapons.
Considering that you just upgrade an already existing item which only requires fuel, I'm wondering whether it will be possible for me to still craft it to it's final tier after the event has ended. I'm a new player and 250 fuel per weapon is a fairly big deal for me. On top of that, if I'd build the Lvl 35 one right away, I wouldn't be able to use it for a good while. Conversely, just building the base item would be a waste as well cause I have outleveled Lvl 15 stuff by now.
It seems that no matter which route I take, I either loose out in the short or the long run. I'm not a collector and those things aren't tradable, so if I can't use these weapons (or don't want to because of low level) they hold no value to me. I was aiming for 2 weapons, but that would almost completely deplete my fuel supply, so I want to be sure beforehand that these will be of use for me along the road.
And yes, I'd buy extra fuel for this, but only if I see any value in it. An item that I'll probably only use for a couple of levels or which I already have outleveled doesn't justify a purchase for me.