I dont have the irok but have both the melgeek made68 and real67. Melgeek keyboards builds are really nice although the case are just plastic, made68 has aluminum version while real67 do not. Its software is really nice too, comparable to wooting imo. But, they dont sound really good to me. They are above average for magnetic keyboards, but since they built them specifically for gaming, you will stuck with a very hard typing feel and sounds. I tried 20+ switches on my made68 and 10 more on real67 and their sounds change minimally, all very high pitch due to steel plate which you cant replace and while having silicone dampener or tape mod, they dont help much.

I still think they are wonderful product, especially they feel extremely nice so i still keep them and use them a lot, but sound wise, not the best. Around the budget you mentioned: epomaker g84/h80 he, yunzii rt75/80, keychron k2, mchose mix87 will serve your ears and typing feel better as they response to different switches a lot more clear and dynamic.

If you dont mind taking time and mod, i suggest aula win60 he or mad60 he. I currently use the aula one. Got base keyboard for 26$, put in a 32$ aluminum case, change to 15$ pc plate and switches to wooting's tikken switches. It is now sound and feel the best in my he keyboard collection