Wanted to get some thoughts on a pair of Xmetal mars leather. Sorry no picture. The condition is poor. Leather is worn and frames in need of tune up. The current lens are in bad shape and not sure if there will be replacement original or after markets. I wanted to get some advice on possible value as they are in now and what the cost may be to tuneup and if there is someone one who can replace the leather and if so possible cost. Thank you for any help and or suggestions.