Modern Upgrades to Old Trucks

[focusedontheprize]

Like everyone on this forum, I really like the looks of my Squarebody truck. One aspect I like to start incorporating more is modern features/functions into the older style without needing a $10,000 budget to do so.

Objective
Starting a running list that tracks all the modern upgrades people are doing to their truck with a few requirements in order to keep them reasonable and keep the topic on point. Please feel free to recommend any ideas for additional requirements.

Requirements:
- Upgrades have to leverage existing parts from a 2000+ newer vehicle
- Parts for upgrade need to be accessible through a junkyard picking

Process
Create a thread and document the following:
- Parts required for the upgrade
- Estimated cost of upgrade
- Procedure on upgrade
- Send me the link and I will add it to the list


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Drivetrain
- Upgrading to LS engine

Exterior
- Mirrors with LED turn signals

Electronics
- Upgrading alternator from 10SI to 12SI
- Upgraded Junction block from 2 post block to 7 post block

Lighting
- LED or Projector headlights (huge upgrade)
- J.W Speaker LED 8800 Evo II upgrade
- LED tail lights

Interior
- Auto Dimming Mirror Upgrade
- LED Courtesy Lighting
- Purchased courtesy light kit from LMC
- Added LED bulbs
- Power seats


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Do we think this is a good idea or do we think this will die off? I am all ears, just wanted to try something new.