I'm in the process of making my first suit, and have faced similar hurdles. I went ahead and ordered the boots from Duran and the gloves from Gaspar (yikes) and a cowl and trunks from Williams Studio (awesome, but yikes again). The cowl is actually a little big for me, so I'm adding foam padding to keep my head from rattling around in it. I wish it fit better, and I am concerned that I will sweat all over it or damage it once I wear it in public. If anyone has any suggestions on how to protect the material I would appreciate your input.
There are some individuals on Etsy.com that specialize in capes. I am working with a lady named Dallas from Wishmaster Capes now, but I have not seen or received the finished product yet, so I can't comment on fit or quality. She agreed to use the Williams pattern, so I have my fingers crossed that it will come out all right. I ended up purchasing some Navy Blue Matte Satin from
www.onlinefabricstore.net (S-PEA934) that is pretty close to the color of the Williams cowl, and that's what she's using for the cape. It's not as high a quality as the material that Williams Studio uses, and the sheen is a little different, but once the costume is assembled it shouldn't be that noticeable. They probably have other fabrics that are close to the Mattel cowl if that's the option you've chosen. You can order swatches from them and go from there.
One thing about the Gaspar gloves; I submitted my measurements and hand tracing so I thought the gloves would be sized just for me, but the fingers are about 1/4 inch too long, and the length of the glove is about 1 inch too long. The fins are also quite large, so even though they were quite expensive, I was a little disappointed with the fit. I'm only 5'8", so they might fit a taller person better. The quality is quite high though, and the leather palms feel really nice, but even with that they aren't "screen accurate".
Another source for the 66 Batman costume is Evolution Props (Gabriel Campos) out of Argentina. He offers the entire suit, or you can purchase individual pieces. They claim it is "authentic" but as others have said I'd take that with a huge grain of salt. I just received my cape from them. It is okay, and he sized it to my request, but I'm sure that it's no where near the quality of a Williams Studio cape. (It is better than a Rubies' or similar cape though). The color doesn't match the cowl or gloves, so I'm hoping the other cape I've commissioned will turn out better.
I purchased some Batman boots from EZCosplay.com, and they resemble the 66 Batman boots, but they are made of vinyl, a lighter color blue, and didn't seem "authentic" enough, but they are a great value at around $38 and fit pretty well. I read somewhere that you can spray them with a darker blue floral spray which sticks to vinyl, but I haven't tried that. EZCosplay has a pretty extensive collection of superhero and anime boots and costumes, so they may be worth a look.
Anyway, that's what I've learned from reading these boards and my own research. It's actually quite difficult (and expensive) to make a "real" Batman costume. I'll post some pictures once my costume is done (if I don't look too foolish). Best of luck with your costume!
20170622_193540 by therron.thomas, on Flickr
