Thats a good deal for Hawaii. The cheapest 180 on Oahu is $900 for just the tank and a 240 is over $1k. Make sure you check the tank good and the condition of the silicone. It looks like they are old tanks
ya i would go for it even if it does need to be resealed.... as for the guy who said he doesnt trust used glass that doesnt make sense if anything I wouldnt trust used acrylic tanks...
WoW thats £250 You cant buy a 6x2x2 tank for that over here never mind an 8x2x2 with a stand. If in doubt ask him to fill it with water so you can check for leaks otherwise bite his hand off.