i know Wickedbeard, great guy and high quality metal parts. If you like realism over hyper-accuracy, his stuff would be the way to go. The accuracy is a bit outdated/off since everything is done by hand, in metal and im pretty sure he hasnt updated his designs since 2006 or so. If your looking for a high level of accuracy, i would go with one of the makers already mentioned that make ABS armor (screen used was ABS) . Animefan is doing the FP armor now, so there is him and also RKD as well as RS props and Bobamaker as well.
For jetpacks there is myself and Wasted Fett, here in the US, as well as Bobamaker and RS Props in the UK.
Gauntlets i believe both animefan and Wasted Fett will have FP's stuff available soon. Again there is also Bobamaker and RS as well. I have them in the works, but they wont be ready until mid/late summer.