I vote Dynatrac or TF 44, but just to let you know. A complete Rubi 44 with 4.10 gears and Elocker, brake to brake, is only $3100 +/- delivery charges. All you would have to do is regear.
For my $4k (which I dont have right now) I would do a Prorock complete with everything you want and just add the locker later.
For my $4k (which I dont have right now) I would do a Prorock complete with everything you want and just add the locker later.