Agree with everything others have said on here but especially the fact that minipins on the front will give you way too much steering, RB6 steering is telepathic anyway so you really need to reduce the effectiveness of the front end.
Try Schumacher yellow cut staggers or just yellow staggers if it still has too much.
Also make sure everything moves freely, take off the hubs/top links and make sure the suspension arms fall under their own weight and then reattach the hubs and make sure they do the same, if not you have a bent hinge pin somewhere which will need changing.
When did you last service your shocks and change the seals? This is an area which some people neglect but by building them properly and making sure the shafts aren't bent you can transform the car even if you're not the world's best at setting up the car.
Also with Kyosho shocks, while you have them apart you can polish the rods to a mirror finish for a silky smooth shock action. Just clamp the threaded end in a vice (using a piece of aluminium so you don't damage the threads!) and using a long thin piece of rag and some metal polish you can make them look like chrome.
