1.8.9 SpaceSuit model issue

[OneDotEightDotNine]

---Issue Report---

(PLEASE DONT DELETE THIS TEMPLATE, YOUR ISSUE WILL BE IGNORED AND CLOSED IF YOU DO. | Required)

Have you checked Closed Issues (if applicable & PLEASE CHECK BEFORE POSTING | Required): [Yes or No]
yes

Description of Issue(Required)

[Description of the issue]
space suit models don't show correctly on any spacesuit other than tier 1, instead showing block lines, or in certain places nothing at all.

Steps to Reproduce Issue(Required)

1. [First step] download GalacticraftCore-1.8.9-4.0.2.190, Galacticraft-Planets-1.8.9-4.0.2.190, MicdoodleCore-1.8.9-4.0.2.190 from mcmod.cn (which is the only site which actually still provides 1.8.9 downloads except for a very old version on 9minecraft) add them to modpack folder from atlauncher
2. [Second step]add extraplanets on atlauncher and launch the game, upon entering into a world and taking the armor from creative the model issue should appear

Crash log/Log (if applicable): [PASTEBIN. Do NOT copy and paste the log into the issue post itself. See below on how to get them]

How do i locate a crash log see https://docs.mjrlegends.com/General%20Minecraft/crash-log/

Screenshots (if applicable):

Mod List (Required):
GalacticraftCore-1.8.9-4.0.2.190, Galacticraft-Planets-1.8.9-4.0.2.190, MicdoodleCore-1.8.9-4.0.2.190, MJRLegendsLib-1.8.9-1.1.4, PlanetProgression-1.8.9-0.3.4, ExtraPlanets-1.8.9-1.6.8

Version of Mod using (PLEASE DONT USE 'Latest' OR 'Newest' | Required): [VERSION]
ExtraPlanets-1.8.9-1.6.8

Where did this bug happen(Required): [Single Player or Server]
Single Player

Additional Information

[Any other information that may be able to help me with the problem]
i do not need someone to fix this, i need the ability to do so myself, and right now i do not as i have no clue where the models are located and if i could modify this to solve the issue, be it by decompiling the mod and changing certain parts. or perhaps just using a resourcepack. i am of course aware that i have downloaded my mods (except for extraplanets planet progression and mjrlegend lib) from an unofficial source, yet this was out of my control as every download link for 1.8 is broken on micdoodle8, and there is no other official 1.8 download so i had to resort to mcmod.cn