Options to slacken out my OG-EVKIN CF-052 29er frame

[Eljay]

I just pulled the trigger on a OG-EVKIN CF-052 which has a 69.8 HA based on an approximately 486mm A-C fork.
I wanted to slacken it out just a bit with longer A-C fork (around 500mm), or possibly install an angleset or spacer puck to accomplish this, but I'm realizing that this looks like an integrated headset so I'm not sure if this would work?  I've never worked with an integrated headset, or angleset, or puck spacer before so not sure if it is possible to use an angleset or spacer puck. 

Does anybody have any leads on a 29" 500mm-ish A-C fork that is reasonably priced or have any idea if I can use an angleset or spacer puck?  Thanks for your input!

[Jotegr]

For integrated forks the only angleset out there I'm aware of is 9point8's slack r

[Eljay]

That is good to know thanks - I may end up going that route.

I'm wondering if anybody has seen any Chiner 500mm axle to crown rigid forks from a fairly reputable seller out there since that would be easier?  I was looking on AliExpress and I did manage to find one but the seller had basically no history so didn't feel good about that one.  Thanks!

[Eljay]

FYI in case anybody else is looking for a 500mm AC Fork - I ended up ordering this one from fleEbay because it was actually less expensive than Aliexpress even w/ tax:

https://www.ebay.com/itm/183907294270

[endo.alley]

I just pulled the trigger on a OG-EVKIN CF-052 which has a 69.8 HA  . . .
Does anybody . . . have any idea if I can use an angleset or spacer puck?  Thanks for your input!

https://9point8.ca/collections/slack-r-kits