Salutations. According to the 501st guide lines, yes the armor is required. Here is the 501st guide lines for the shadow guards costume requirements. http://databank.501st.com/databank/Costuming:TR_tfu_shadow As to the Saber Pike, I am not certain as who makes a full saber pike. I used a Stunt light...

Hello, I got mine off of Ebay. This one is similar to the one I bought. https://www.ebay.com/itm/STAR-WARS-EMPE ... SwpLNYBJ2Y
This one is about $200 with $22.30 shipping.
Hope this helps.

]Hello. This is my first costume build. I have most of what I need for my Shadow Guard costume. But, I am still lacking a saber pike. I found a web site that makes light sabers called Ultra Sabers, would the light saber they make called Bane combined with their Yari extensions and some modifications...