I've got a possible chance to buy one of two rifles: both Springfield Armory - one SAR-8 (Greek), and one SAR-4800. Now I have a 4800 in 21", and would like to have an 18" version as well, which is what this one is. But I don't have a G3 type represented in my stash, and have had an itch for one of those too. The HK clone will be harder and more expensive to rid itself of that hideous thumbhole stock, the FN clone is easy and a bit cheaper. They are nearly within $100 of each other (-8 is more expensive). Can't afford both - which rifle sounds like the one I should try for?