New, with questions on selling main acc and gp

Hey guys, obviously I'm new here. I've played since elementary school up until now, and have debated quitting for months now and rarely play more than an hour or two a week. Always loved the game, still greatly appreciate it but just feel like I've had my fill.

To preface my question, I'll say yes I bought a lot of gold for this account over a period of 3 or more years. I doubt I'll be shamed for that here but I come by it honestly when theres no repercussions. Im debating selling the account and/or just the gold, as I rarely play anymore and real life is becoming more pressing.

THE ACCOUNT:

One bot busting moderate ban from autoclicking, 2 day ban, only offense.
The acc has 1b+ in gear and cosmetics. Basically has max gear without tbow, scythe, and a few other things.
108cb, 80/93/80 80pray 87rng 99mage 88hp, all skills base 70 except rc, some in the mid 80s. 202qp, b gloves, fcape, regular void range, graceful set, ma2 Cape, maybe other less notable things.
Never been hacked, I'm the original owner too.

I've never been on the selling side of the underground runescape market, this is even my first scythe account ever. My main concern is selling only the gold and then having this account banned. The only reason I have any reservations on a ban of an account I'm willing to sell is, because if I start from 0gp I may find I actually enjoy playing casually with these stats and legitimately earning everything I get. However, I more than likely will just flat out quit because I already rarely play because my free time is becoming more and more limited and I have higher priorities now.

THE QUESTIONS:

Mainly, who is reputable to sell to? How easily would I be able to sell both the account and the gold? What could I reasonably expect to sell 1b osrs for, and expect for the account? Would it be okay to trade 1b all in one go? Would anyone be able to tell me a legit person who buys a lot (I browsed the WTB section, just having never used sythe it's hard to distinguish legit from illegitimate, seeing a million 'bumps' makes me suspicious.)? Personally I wanted to sell them both as a bundle, how hard would that be if I was to cut the price of the account significantly (I envision at most 50% off, but maybe more discounted if it's actually worth something since the gp would be a lot).
I would like to have it paid for in crypto too, and would want to use an omm since itd be such a big transaction.
I'm not 100% set yet on selling the account or even any of the gold, and if I sold the gold I'd want to make sure it's all sold at once just in case I got banned. The reason I would want to discount the acc too would be to get it sold as a bundle more easily and be able to step away from runescape for a while, while i get real life sorted out.

Thanks to anyone who took the time to read this monstrosity and point me in the right direction. Normally I'd be fine to try and buy a little bit on my own and learn the site, but I've been burned too many times by scammers in game and have learned better lol, especially if I'm going to be selling this much USD worths of gp. 90% of the gold I bought I got through bogla if that means anything as well, and I havent bought any gold in over 6 months.