N Scale Steam Locomotive Power Pickup Wheels

After getting tired of the weird power problems caused by having a steam engine with power from the drivers on one side and the the tender on the other side I went to shop to look for an N scale steam engine that had power pickup on both sides of the drive wheels like a high quality HO steam engine, only to be told that nobody makes them like that.

Currently the best way to clean locomotive wheels is with a powered wheel cleaner; Woodland Scenics makes an excellent version of it called TidyTrack but even lesser versions work far better than a manual cleaner. The obvious catch with this is unmotorized wheels don't get cleaned. Also, nobody makes a cleaner long enough for both the locomotive and its tender so this means fiddling around with alligator clamps on the tender, which is too frigidity for my taste; sooner or later it seems like something will break this way.

Cleaning the tender wheels however is regulated to one of several much worse methods; right now I use rail cleaner and paper towels (soon to switch to q tips). The recommendation from the shop was a bright boy, which is an obvious bad idea.

Not picking up from all the drive wheels just feels really cheap on a five hundred dollar locomotive. Consider that essentially every diesel picks up from all its wheels, as does a large subset of (usually much cheaper) 0-4-0 or 0-6-0 yard switchers (no separate tender to pick up from...); thus it seems that the larger ones should too.