Here is that charger from HobbyCity for $12, new -

http://www.hobbycity.com/hobbycity/s...110/240v_Input

Here are the Rhino 3S lipos, for $16 each -

http://www.hobbycity.com/hobbycity/s...0C_Lipoly_Pack

Shipping (express international) is like $30. The Ebay auction you linked seems overpriced.

The Rhono's have a good rep as long as you keep them balanced and don't discharge them too deeply.

The 2nd lipos - they're not a not choice for a Slash. But for a 16th E-Revo will they fit? They look long. These look like Flightmax lipos - more chinese lipos, again, prob ok as long as they're balanced and not too deeply discharged. Look on the HobbyCity site and see what other lipos you can find that size. This auction look a little more reasonable price wise.