The Verdict: Unlikely
Capital alone does not meet the elective residence test, which looks for regular income, so this is a long shot as things stand. To change that, turn part of your capital into a documented recurring payment and build several months of it.
Consulates ask for income that is stable and continuing. A large balance or the proceeds of a sale is a stock, not a flow, and they will not infer an income from your ability to generate one.
An annuity, an income-paying fund or a let property produces the kind of payment the visa looks for. Consulates look back over months, so start a year before you want to move.