Sako Quad- Mcmillan inlets all of their stocks for the quad, manners has a stock for the quad (with a matching stock for a tikka t3), drop in barrels from lilja (17hm2, 22lr, 22wmr and 17hmr) and what looks to be a nice trigger
Savage Mark 1/2- A couple of nice stocks from boyds, a decent trigger in the accutrigger with the option of a rifle basix trigger, i've seen a couple of pictures of 10/22 barrels made to fit the savage.
10/22- aftermarket everything from everywhere, you can build stock a 10/22 up that looks and feels like your mdt 260 or you can build a br quality that groups in the 0's at 50 yards