You can get wood stocks on AR...easy a pie (in walnut, oak, various laminates, etc.)...and I agree...quality composites that resist environmental stress, strains, damage that'd ruin a wood stock, etc., aren't for everyone, so the good Lord hath given us wooden furniture for AR for those that so desire!!
If you think that AR's are prone to "jamming" or that Minis are somehow "superior" in that regard...you've been reading too much on the Internet or otherwise not been around the right ARs!
Look...if you like the Minis...that's AOK. Just live with what they are instead of spending (READ: WASTING) a bunch of your hard-earned money on gimmicky BS that isn't likely to give you a much, if any, better shooting rifle. If you REALLY MUST go after the mythical unicorn of the accurate Mini-14, then try here:
Accurized Ruger Mini 14 30 Rifles Custom Harmonic Rifle Barrel Stabilizer Tunable Boss Gas Block System The guys at ASI have been modding Minis for more years than I can count and while I still advise you to put your money elsewhere...I respect the work that the guys at ASI do.