It's a great little kit!
Here's some pix of one I did about 4 years ago:
I used the Ordnance Models PE set and resin mantlet set, which also came with the auxilliary motor that sits on the righthand muffler. All quite nice, and very easy to install.
I also recently replaced the Tamiya trax with the AFV Club aftermarket trax (band type). They're a little looser than I'd like, but they look
MUCH better than the Tamiya trax, which have no detail at all on the inside.
The only thing I regret not doing is replacing the jerry cans on the turret with more accurate ones and replacing the grab handles on the sides of the turret with brass rod.
The M2 machine gun is from Skybow.
I don't know if the Marines used Walker Bulldogs.
I built my as a JGSDF M-41.
As far as tricks go, I replaced the handles on the sponson storage bins with wire (not very accurate!), and I created a groove between the rear fender and muffler cover, which on the kit is just a solid area. Added a few plastic scrap mounting straps, too.
Two spike-like items in front of the drivers hatch (no idea what they are, but they're in all the ref pix I've seen), lifting eyes on the glacis, hatch handles replaced with brass rod, and new antennae round out the mods that I made to the Tamiya kit.
A great kit for 6 bucks.
And even with the Ordnance Models sets, still cheaper than the AFV Club and Skybow kits! (Which I have, and are both excellent kits!)