Requirements for running a full Bitcoin node for next 10 - 15 years.

Is anybody knowledgable enough to give an education opinion on what device (or device components) exacly and why should i buy to run a full Bitcoin node for many upcoming years without worrying about hardware upgrades and so on? I'm really curious about your predictions on how fast Bitcoin node size will grow in post quantum cryprography world (where we would need diferent, probably much bigger signatures). What hdd and ram should i get? Is raspberry pi 5 with 8GB ram enough for many, many years? What else to buy and what else should i care about? What system should i run? How to secure everything? Do i need a stable ip adress? Is it a good idea to have my wallet software eg. sparrow wallet on the dedicated full node device or sohuld i just use the full node device as the source of truth and guarantor of privacy (or rather just for a better privacy)? Should i use electrum private server? What to consider for a lightning node option? What do you think will be LN requirements in 10 years from now? How do i limit the risk of malicious software/hardware on my full node device before and after the purchase? Is it hard to setup and maintain everything for a computer and coding newbie? Any good feedback highly appreciated (we can make it very educative)