woodchip

Hi all, new here but thought I'd ask for a bit of help with this. The red bike is apparent a Carlton and the seller is being quiet on the details - does anyone have any idea what bike this is, and if its worth paying for? I'm thinking of going and buying it tomorrow. Attached, its the red one. Guesses on the frame height gladly received as well!

Also, opinions on whether I should buy the Carlton or this blue Lotus challenger I found (basically the same price @ £70) would be much appreciated!

Thanks all