Looking for Existing Profitable XAUUSD EA - DEMO TESTING before purchase

Hello MQL5 developers and algorithmic traders,

I'm looking for an experienced MQL5 developer who already has a well-developed and potentially profitable Expert Advisor for XAUUSD (Gold).

I'm NOT looking to develop a new strategy from scratch.

I'm interested in discovering existing, tested trading systems that developers may be willing to demonstrate or offer for a trial period before a potential purchase.

My preferred requirements are:

- MT5 compatibility.

- At least 12–24 months of historical testing.

- Consistent performance across different market conditions.

- Reasonable drawdown and solid risk management.

- No martingale or aggressive grid systems.

- Preferably verified live or demo trading results.

- Possibility of testing the EA on my own demo account or through an MT5 Strategy Tester trial.

I'm open to trend-following, breakout, mean-reversion, and other robust trading approaches.

If you have an existing EA with promising results, please share information about its strategy, historical performance, drawdown, and available testing options.

I'm willing to consider purchasing or licensing a genuinely promising system after independent evaluation.

I'm interested in serious proposals, not unrealistic profit guarantees or marketing screenshots.

Thank you!