I need an ABY pedal but I don't know what to get.
I was thinking some fender ABY switch for $40, but then I realized I probably should check on some forum or something first. I really find anything when I googled, so here I am.
here's the fender box

Would this box work or do I need something more.. elegant?

That should be fine. They say it works with no power so it must be a passive jobby like the ones I build. That is cheaper than the cost of parts to build it.
Gilchrist custom
Yamaha SBG500
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100

Cathbard Amplification
My band
Really, most passive aby pedals are okay. The Bigshot is pretty well known though, so there has to be something good about it.