Question about electnonics Rabid Prototypes

Hi guys

I want to buy a new elctronic kit for my pack. I need more space inside my aluminum gun, made by CPU64, for the extension barrel. What do you think about the RABID POSITRON PROTON PACK KIT??

Is it to expensive for the type of the kit or the price it’s correct?

It’s an reliable kit? Durable?

Or it’s easy to be damaged?

If this is the same Rabid Prototypes we’re talking about here (Shawn Swift), here’s a little light reading. Spoiler alert, avoid this seller: https://www.gbfans.com/forum/viewtopic.php?t=16064

I’d honestly give it as wide a berth as possible, and look for an alternate set of electronics.