My Personal Modifications
As a person who enjoys tinkering with model RC tanks, I found the job of correcting and personalizing the Hen Long Tiger 1 to be very satisfying. Some of the modifications that I chose to make to the model were:

paint (Tamiya German Gray with Tamiya white primer and Model Master “Rust”)
3 gray $15.00, 1 white $5.00, 1 rust $6.00, 1 full day of painting
added spare tracks to turret
free (had them already) 15 minutes to paint, 2 minutes to glue
inverted mantle to correct position
free, 30 minutes to do correctly
made vision slits
free, 5 minutes
rotated pistol port 45° counterclockwise
free, 10 minutes
opened and hinged loader's hatch
free, 1 hour
corrected commander's copula
free, 30 seconds
replaced plastic hatch handles with wire
free (had wire), 15 minutes
removed cannon on/off switch and plate
free, 30 minutes
relocated and trimmed antennae
free, 20 minutes
added metal cables
$20.00, 30 minutes
added metal lights
$15.00, 30 minutes
removed false tools and repaired and sanded hull
free, 1 full day (total)
added hand-painted, metal tools
$15.00, 30 minutes
replaced plastic crate with wood
free, 10 minutes
added two Ultimate Soldier Figures and one Dragon figure
$20.00, 5 minutes
added Ultimate Soldier and Dragon equipment (helmet, binocular case, grenades etc.)
$N/A, 5 minutes
added German recognition flag
free (had it already), 2 minutes
removed bulbs in mantle (after these pictures were taken)
free, 15 minutes
replaced plastic machine gun with metal Tamiya LED flashing unit
free (had it already), 5 minutes

Total Price: $96.00 in addition to cost of tank
Total Time: 2 days, 4 hours, 47 minutes
Having the tank just the way I want it......priceless.

Jason