I'd say you'd be much better off with a second hand B4, the Ansmann will be cheaper initially but you'll end up spending more if you go for that and start upgrading things like shocks/turnbuckles/screws ect.
You'll also find spares a lot easier to come by trackside, everyone's got a B4 wishbone in their pit box
Which truggy do you have, do you have a picture? Chances are if it's roughly 10th scale and electric it'll be fine for club meetings