I don't wish to defend this stick because it is such a poor PC flight stick. What else can you expect for $1.60? However, it is only as flimsy as the joystick that it's attached to. The conversion only uses the handles, switches, and joystick mount. However, note that the switches click louder than cherry microswitches.
I'm actually using the Raider Pro, which is a little bigger but harder to find (they usually go for about $10). However, the Raider is very similar and will mount the same way. I'm using a Happ Competition (Happ part# 50-6070-16) with the addition of its heavy spring (Happ part# 95-1309-01) as my joystick.
The arcade conversion is quick and easy (it might take you about a half an hour to complete). You will need some more parts to make it a working arcade stick (a Happ Competition or a Happ Super joystick, a metal shaft, and drill stop). What makes this such an easy conversion is that the joystick mount accepts a 3/8" shaft (0.375 inches). Since Happ Competitions and Supers have 10mm shafts (0.3937 inches), a replacement 3/8" shaft is acceptable (only 0.0187" too small). I used a 3/8" stainless steel tube so the wires can be fed through the shaft. Also, instead of using the e-clip, I used a 3/8" drill stop. Tip: drill two holes in the shaft (instead of one) that match up with the holes in the joystick mount (this should make the stick more sturdy).
I was looking for a stick with a trigger and a thumb switch; these are getting harder to find as today's PC sticks seem to have 4 or more buttons on the stick itself. I was also looking for a stick that is both left and right handed.
However, I'd appreciate other options since the clicking is somewhat annoying.