Just stumbled upon this thread, I assume that you're based in the States and would want to transact in person there, are you in any particular rush or having held this for so long are you happy to wait a few months for an offer higher than 115BTC?
I'm presently traveling for a few months and leave my BTC on Ledger Blue wallets in bank's safety deposit boxes, ideally my next visit to the States wouldn't be until January 2019.
I am in no particular hurry, except that the high BTC goes, the harder it will be to sell it.
Likely any buyer would already have the bitcoins, as in my case, so the USD rate doesn't really matter that much (so long as one doesn't mind making large amounts of value much less liquid in return for this cool collectable cold storage), I'm happy to offer you 120 BTC (regardless of what the USD/BTC value is when we complete) and exchange face to face at a mutually agreed lawyer's offices* in the States in January 2019 (I'm based in LA, but could fly in to NY np) or if you fancy a trip to Europe before then and don't mind bringing it over with you then I could do it in July - Aug - part Sept - Channel Islands (UK), part Sept - Greece, Oct - Madrid, Nov - Barcelona.
*A simple sales contract having being drawn up to show our details, the transfer of ownership and the relevant BTC addies, the lawyer effectively escrowing by holding the bar until the payment coins confirm at your given receiving addie, a couple of hours max or so depending on how many confirmations you'd like.