One of the best sources of information on Yashica TLR is http://www.yashicatlr.com/
The site is developed by Paul Sokk who is based in Australia. there is a quite comprehensive table of an overview of all Yashica TLR models
Link to the comparison table:
Weight is always a concern if you frequently shop on ebay. Shipping cost can be high, especially for international bidders. Normally it costs 45-55 USD to ship a Rollei TLR from US to Asia via USPS express. Might be slightly cheaped if shippied via priority mail.
The item is bulky and heavy. Here is a compiled list of weight of different models of Rollei TLR. Hope it is useful for your online shopping.
|Rolleiflex||3.5E/E 2/ E3||1120g|
|Rolleiflex||2.8E/ E2/ E3||1250g|
Mike@Butkus.org has a wide collection of Rollei TLR manuals in PDF. It is always a great source to look for camera manuals.
If you like it, perhaps you can donate a few dollars 🙂