```py
import asyncio
import os
from aiohttp_socks import SocksConnector
import aiohttp
from selenium import webdriver
from selenium.webdriver.chrome.options import Options

ROOT_DOWNLOAD_DIR = "./downloads"  # Change this to your preferred root directory

async def download_file(session, url, path):
    """Asynchronously download a file and save it to the specified path"""
    try:
        os.makedirs(os.path.dirname(path), exist_ok=True)
        async with session.get(url) as response:
            if response.status == 200:
                content = await response.read()
                with open(path, 'wb') as f:
                    f.write(content)
                print(f"Downloaded {url} to {path}")
            else:
                print(f"Failed to download {url}: Status {response.status}")
    except Exception as e:
        print(f"Error downloading {url}: {str(e)}")

async def download_all(download_queue):
    """Process all downloads in the queue asynchronously"""
    connector = SocksConnector.from_url('socks5://localhost:9050')  # Tor proxy
    async with aiohttp.ClientSession(connector=connector) as session:
        tasks = []
        for url, maindir_num, subdir_num in download_queue:
            filename = os.path.basename(url)
            dir_path = os.path.join(
                ROOT_DOWNLOAD_DIR,
                f"maindir_{maindir_num}",
                f"subdir_{subdir_num}"
            )
            file_path = os.path.join(dir_path, filename)
            tasks.append(download_file(session, url, file_path))
        await asyncio.gather(*tasks)

def setup_driver():
    """Configure and return the Chrome WebDriver"""
    chrome_options = Options()
    chrome_options.add_argument("--window-size=768x1024")
    return webdriver.Chrome(options=chrome_options)

def handle_bot_check(driver):
    """Wait for the bot check to complete"""
    print("Waiting on bot check...")
    while True:
        if driver.execute_script("return document.title") == "HOME | CL0P^_- LEAKS":
            return
        driver.implicitly_wait(2)

def main():
    """Main scraping and download coordination function"""
    driver = setup_driver()
    driver.get("http://santat7kpllt6iyvqbr7q4amdv6dzrh6paatvyrzl7ry3zm72zigf4ad.onion")
    
    handle_bot_check(driver)
    driver.implicitly_wait(20)
    
    download_queue = []
    maindir = 0  # Main directory counter
    
    try:
        while True:
            # Navigate to main directory
            backto = driver.execute_script(
                'return document.body.getElementsByClassName("g-menu-parent-indicator")[1].parentElement.href'
            )
            maindir += 1
            driver.get(backto)
            driver.implicitly_wait(20)
            
            # Process subdirectories
            subitems = driver.execute_script('return document.body.getElementsByClassName("read-more").length')
            for subdir in range(subitems):
                driver.get(backto)
                driver.implicitly_wait(20)
                driver.execute_script(f'document.body.getElementsByClassName("read-more")[{subdir}].click()')
                driver.implicitly_wait(20)
                
                # Collect download links
                total_items = driver.execute_script(
                    'return document.getElementById("g-container-main").getElementsByTagName("a").length'
                )
                for item in range(1, total_items):  # Skip first item if needed
                    url = driver.execute_script(
                        f'return document.getElementById("g-container-main").getElementsByTagName("a")[{item}].href'
                    )
                    download_queue.append((url, maindir, subdir))
                    print(f"Queued: {url}")
    
    finally:
        driver.quit()
        print("Starting asynchronous downloads...")
        asyncio.run(download_all(download_queue))

if __name__ == "__main__":
    main()
```