The link brought me right back here, so I can' t comment about the kit.
Yep, you' d really be ahead of the game if you had a good belt sander that uses a wide belt. Very nice for nocking off all the excess epoxy after coming out of the hot box (you won' t believe how ugly they are when you pull them out of there!) and to profile the limbs. In fact, I' d rate the belt sander as a ' must have' item. Instead of a plain drum sander, it' d be nicer to have an oscillating spindle sander with several different sizes of mandrels and sanding drums.
As you' re making that first bow, you' ll think of at least a dozen things you' ll do differently on the next one. And there' ll be at least a dozen boogers on it that you' ll be intimately familiar with and stick out like a sore thumb to your eye, but nobody else is likely to notice.
I have to say that I enjoyed making my bow immensely. Almost as much as I enjoy shooting it.