Got some information you might like to check out.
Magills Glock Store in Cali is selling factory G43 frames for $45 each or 3 for $120.
These are not kits, 80%, etc. but regular serial numbered frames.
Advantage of going this way is you can then purchase exactly the aftermarket parts you want to put in it and not be replacing parts you will never use again.
You can assemble it to 100% Glock or you can put a factory slide over custom trigger, etc.
Since it is a 'firearm' you will have to have it shipped to a local FFL to pick up.
https://www.glockstore.com/Sale ends tomorrow night.