 ```python
import os
import PyAEDT
from pyaedt import Hfss, Edb, Q3d

# Set up project files and paths
PyAEDT.set_version("2022.1")
os.environ["AEDT_ license_file"] = "/path/to/license/file"
project_file_path = "path/to/project/file.aedb"
project_name = "temp_project"
temp_project_path = "path/to/temp/project/directory"
q3d_project_name = "temp_q3d_project"
q3d_project_path = "path/to/temp/q3d/project/directory"
hfss_3d_layout_project_name = "hfss_3d_layout_project"
hfss_3d_layout_project_path = "path/to/hfss_3d_layout/project/directory"

# Download project file and set up temporary project directory
check_and_download_file(project_file_path)
clean_cache_and_files(temp_project_path)
os.makedirs(temp_project_path, exist_ok=True)

# Open EDB project and create a cutout on selected nets
with Edb(project_name=project_name, edb_path=temp_project_path) as edb_design:
    edb_design.open()
    # Assuming 'nets' is a list of nets to create cutouts on
    for net in nets:
        cutout_design = duplicate_and_unite(edb_design, net)
        cutout_design = duplicate_and_mirror(cutout_design, "X", 1)
        cutout_design.set_name(f"cutout_{net}")
        cutout_design.save()
    edb_design.export_to_q3d(q3d_project_name, q3d_project_path)

# Open Q3D project, plot it, and assign sources and sinks on nets
with Q3d(project_name=q3d_project_name, q3d_path=q3d_project_path) as q3d_design:
    q3d_design.open()
    q3d_design.plot()
    for net in nets:
        pin_positions = get_pin_positions(edb_design, net)
        create_port_between_pin_and_layer(q3d_design, pin_positions, net)
    q3d_design.enforce_dc_and_causality()

# Create a setup and a frequency sweep from DC to 2GHz
setup_name = "setup"
frequency_sweep_name = "frequency_sweep"
with q3d_design.setups[setup_name].analysis.frequency_sweep(frequency_sweep_name) as freq_sweep:
    freq_sweep.start = 0
    freq_sweep.stop = 2e9
    freq_sweep.number_of_points = 101

# Analyze the project, compute ACL and ACR solutions, and plot them
q3d_design.compute_acls(setup_name, frequency_sweep_name)
q3d_design.compute_acrs(setup_name, frequency_sweep_name)
q3d_design.plot_acls(setup_name, frequency_sweep_name)
q3d_design.plot_acrs(setup_name, frequency_sweep_name)

# Open Hfss 3D Layout project, generate the 3D model, and export the layout to Q3D
with Hfss(project_name=hfss_3d_layout_project_name, edb_path=hfss_3d_layout_project_path) as hfss_3d_layout_design:
    hfss_3d_layout_design.open()
    hfss_3d_layout_design.import_q3d_project(q3d_project_path)
    hfss_3d_layout_design.generate_3d_model()
    hfss_3d_layout_design.export_to_q3d(q3d_project_name, q3d_project_path)

# Launch the newly created Q3D project, plot it, and assign sources and sinks on nets
with Q3d(project_name=q3d_project_name, q3d_path=q3d_project_path) as q3d_design:
    q3d_design.open()
    q3d_design.plot()
    for net in nets:
        pin_positions = get_pin_positions(edb_design, net)
        create_port_between_pin_and_layer(q3d_design, pin_positions, net)
    q3d_design.enforce_dc_and_causality()

# Create a setup and a frequency sweep from DC to 2GHz
with q3d_design.setups[setup_name].analysis.frequency_sweep(frequency_sweep_name) as freq_sweep:
    freq_sweep.start = 0
    freq_sweep.stop = 2e9
    freq_sweep.number_of_points = 101

# Analyze the project, compute ACL and ACR solutions, and plot them
q3d_design.compute_acls(setup_name, frequency_sweep_name)
q3d_design.compute_acrs(setup_name, frequency_sweep_name)
q3d_design.plot_acls(setup_name, frequency_sweep_name)
q3d_design.plot_acrs(setup_name, frequency_sweep_name)

# Release the desktop
PyAEDT.desktop.release()
```
Please note that this is a basic structure of the code and you might need to modify it according to your specific needs. The `get_pin_positions` function is not implemented here, you need to implement it based on your components and pin locations.