funny u asked about a large live trap since i just finished mine!
too bad u dont have livestock....or do u? around here outside the city limits if any animal comes on your land and threatens your livestock...even if it has a collar and tags...even if its friendly....u are allowed to shoot it as long as u are taking safe shots. so if there chasin wild game all ya gotta do is drag the dog close to yer pen or barn if ya got one and call the sheriff and say it was tryin to kill your livestock.
my uncle thought u werent allowed to shoot dogs until an OPP told him he could...that was 4 or 5 yrs ago and at least 15-20 dogs have ate lead
as for the trap here is the link:
http://www.gsu.edu/~biojdsx/fowl/fabcops.htm
i just made mine half that size since its for trapping only (6ft x 2.5ft x 2ft) and it has been tested on a purebred german sheperd so my sizes should be good enuf for u. the plans arent too great but it gave me enuf of an idea (im 18 years old so anybody should be able to do it) i just had to think bout sum things that they didnt describe good enuf. it cost me $70 canadian to make it so its quite a bit cheaper that the store bought ones which run u bout $250-$300. BTW....$50 of that was for a 50ft roll of the fencing and u only actually need like 15ft of the 4ft wide stuff. bastards wouldnt cut it off so i had to buy the whole roll....
ch312
PS. PM me if ya got any questions.