Great quality resin models take a little while to come but cant coplain too much the quality and price take the proverbial out of armourcast at times. For 40k id reckon you would find a few nicer models in forgeworld but not even a sniff at a component price.
They’ve been around for a while. Unless you’re in UK; their shipping was rough. You can purchase many of the bits from these kits if you want specific wheels or components that should help some of the heavy converters.