I get that you're skeptical of the platforms but since you're intending on holding your coins for the long term, why not allocate a portion of it? There is huge potential for gains especially since you're just letting it sit there. Nothing ventured, nothing gained.

Just a curious thought, will you be opting to allow crypto as payment for rental from your tenants? That would be cool though.

I like your plan because real estate is a sound investment unlike how other coiners out there dream of buying a lambo with their coins in the future. Cars are not the best choice to spend your money on because the moment you purchase it, it depreciates in value whereas real estate does the opposite. You should consider buying in a location situated where you think there is possibility of development. Location is very key in real estate investing. Right now is actually a pretty good time to buy because of the pandemic.