Helios vs Helios Prime

[Nijuu]

Been using Helios for a fair while now (switching with my kavat and taxon) and slowly getting hang of using the deconstructor with helios. Nice!!!.
However i am wondering, whether Helios prime is worth getting (better stats aside) especially for their weapon ?. I have all the prime parts except the one (vaulted)which sells on market .... price of the part would buy the whole set... (Similar issue with hydroid prime...). Fwiw i have seen more people recently in pubg using Helios prime than other sentinels

[Pakaku]

It's technically a straight upgrade, but unless you absolutely want it right now, I wouldn't say it's that big of a deal to wait for an unvault.

[Aegix Drakan]

I use Helios Prime purely because I had all the parts for it and haven't been able to sell it in months, so I said "Eh, I need stuff scanned for my Simulacrum testing, why not just use Prime"