as far as the trading part goes, LP values have been reasonably stable for well, nearly as long as the lp store was introduced in 2007. 1-2k isk/lp has been more or less the standard rate although of course there were some 3-5k trades if not higher for various periods of time. If you need isk now selling to buy orders is easy, and typically a more accurate price. if you can wait a little bit of time using sell orders is pretty easy, typically you can just leave them and they will sell within a week.