Let a signing device cost you ~$200. That's less than 1% of the price your coins are currently worth. For me that would be a no-brainer.

If your coins are Bitcoin only I would suggest you also buy a signing device that just supports Bitcoin. First it minimizes possible attack surfaces by eliminating code intended to support the other coins and second - at least for me - it is an ethical thing as I despise most of the crypto casino which one would indirectly help flourish. That would rule out the Trezor and Ledger mentioned above. The latter also had a serious leak of customer information which led to some threatening and blackmailing of customers. I even heard stories of people getting a visit from not so friendly people who wanted their coins. Maybe just rumors idk...

Considering the above I would advice you to buy a Foundation device or a Coldcard. Coldcard also deletes your customer information after some time (at least it says it does).

Best thing would be to pay with bitcoin, provide a false identity and let the shipment come to a place somewhere you have access to, but which is not exclusively identified with you. This way you mitigate some risks, since ordering a signing device directly to your home provides plenty of evidence about your financial business to outside people...

But don't let the hassle be a non-starter for NOT buying one.