Just finished my b44.1 - couple of Q's for help please :)

[Lonestar]

Hi Guys I'm done with the build of my b44.1... this is my first 4wd offroad car since I ran my original xx4... last millenium

A couple of things that have me puzzled, was wondering if you could help.

1- wobbly front wheels. The rims look fine, it's in the hex I'd say. Any known way to assemble them or mount them on the axle that'd minimize this? It's visually pretty scary to say the least. Any special tips on the hexes to prevent losing them everytime you change the fronts? Thanks

2- the steering post holes in the top deck are ridiculously much larger than the the plastic parts that are supposed to go in it. This creates absurd amounts of slop in the steering system. Did I get a lemon, or is this common? Is it worth trying to fix?

3- the car still sounds like a pepper mill despite breaking the primary drivetrain in for like 6hrs with an old brushed mill under 3V and shimming this properly (I think, at least definitely not on the tight ie noisy side)... this is appalling, really.... any fix?

4- Center cvd cups - all wobbly on the slipper axle... is this "normal", again? worth trying going aftermarket?

5- last but not least... anyone has a 9783 blue alum part for sale (front deck-to-tower block) please? OOS everywhere

Thanks all for the help
Paul