Alright, so bear with me. I just started learning about all the new camera's and equipment (I've been a DVX100 bubble for a long time). Anyways, the hopes is to buy an HPX170 evantually. But i want a letus 35mm adapter with it. I found a guy who's willing to sell me his used letus extreme (nikon mount) with indifocus rails for 1000 Canadian. Thats about 910 dollars american. Good deal? He says its in wel kept condition. Is there anything else i need to know about it before i buy it? Thank you for your help