How many Agents can you use?, Help a newb out with agents! Options

[War Wrecker]

I've been trying to make my first matrix character and I've had a good look at the rules in SR4A and Unwired, looked over countless forum posts from the last ~7 years across various forums, and I'm still not sure I've got the rules for agents correct. Assume that all programs are cracked.

The rules indicate that only 1 agent from a commlink can be copied onto a node at a time, but that agent may be loaded with its own agents. Is there anything stopping me from just loading up 5 dummy commlinks with 5 agents each, loading 4 agents into 1, and copying all 25 onto a node?

When agents are loaded into a persona, or another agent, they're treated as programs and don't have their own access ID. Does that mean I can copy an agent from 1 commlink to another, and then load and run both agents on both commlinks' personas on the same node at the same time?

If I load up my persona or an agent with more agents, does each agent need its own copy of a program to use it or can multiple programs share the same attack/armor program?

Similarly, if I'm on a node which I'm accessing from multiple personas using multiple commlinks, or a node which has some of my agents copied onto it, can I designate and run programs for personas/agents running on different devices and vice versa? I'd assume if this was allowed that the programs would be vulnerable to spoof commands, and as far as I can tell it's not covered by RAW.

Also I can copy an agent onto a node, the agent functions with its own access ID, and henceforth functions independently, running from the node. Does this mean I can load up my persona with a bunch of agents (which are now running on my ID, which may be spoofed) and then copy an agent from that commlink onto a node (which may be loaded with more agents) and then run all of those agents in one node?

I don't want to create a full "agent smith" scenario, I just want to find a practical way to use ~5 agents at the same time. Every nuyen saved means I can diversify my character so they can fill a broader roll.

Yes I am aware that there are a lot of advantages to hacking things yourself and there are a lot of disadvantages to using agents for hacking.

The idea would be to have an AR/VR commlink loaded with all of my programs and a handful of agents (~3), with the agents running and deactivating programs for me, as well as using programs which don't have an opposed test, or otherwise do not suffer from the agents lowered stats, and simultaneously have another commlink loaded with agents and copies of certain programs (attack, browse, nuke, and scan for instance)) that I would use for mass probing stuff as well as flooding a node (via creating a reusable exploit) with combat agents to fight IC when matrix security detected me.