Building a custom Steadicam transport cart from Backstage components

Gear

ZephyrCan I fly my Alexa or RED on a Zephyr?389

Master SeriesIs a used Master Series rig worth buying as a first big rig?191

BFDHow do I power my BFD receiver from my camera or sled?186

VoltCan I retrofit a Volt onto my existing sled or gimbal?168

ArtemisHow do I power my camera and accessories from an Artemis sled?166

MDRWhere can I mount my Preston MDR on my rig?143

ModulusIs there a Modulus option for HD wireless video?141

G-70Will my G-70 fit my vest, gimbal or sled?126

FI+ZCan I control iris and zoom wirelessly, not just focus?60

HU3Where can I get my HU3 repaired, refurbished or repainted?60

CineLiveHow do I pack and case my CineLive rig for transport?54

G-70XHow does the G-70X compare to Pro Titan, Xarm and other arms?46

Trinity 2Is Trinity 2 SUP 3.0 firmware safe to install or buggy?46

Ultra VestWhich vest should I choose for my body size, comfort and operator type?39

2015Cases/Carts/Stands and Transport forum

A functional Steadicam transport cart can be assembled by combining a TR-04 Junior top with a TR-04 Senior base, as both have matching widths for the vertical posts.
Custom speedrail sliding cages can be fabricated to protect the rig while it sits within the cart base rather than protruding beyond the cart edges.
Keeping the Steadicam rig contained fully within the cart footprint reduces damage risk from incidental contact and makes the cart fit through standard elevators.
The manufacturer may be willing to produce a TR-05 cart to order despite limited stock availability.

This approach requires custom fabrication work and is not a standard off-the-shelf solution.
The specific dimensions and compatibility details between TR-04 Junior and TR-04 Senior components are stated but not independently verified in the discussion.
No technical drawings or detailed assembly instructions are provided.