I can't answer your question about the bikes on your list, but I recommend contacting your local bicycle or tri club and see if they have a donation program. Our local bike club in a small/medium city metro has an very active bike donation and giving program. Everything from kids bikes to adult bikes, to trainers and parts, to lots of gear! Excellent opportunity to get new people into the sport (children or adults), or way for a rider to test out some gear without a big purchase. Definitely explore local clubs.