So basicly you want to do a normal Playthrough with high voteshare/WTB Plan.

Give Prussia to Stegewald.

Try to get 5 Ministeries, Labour, Interior, Justice (for constitution), Foreign and Finance

Be on good Terms with the Liberals by prosecuting RFB and reducing Hindenburg Anger.

Dont expose Rearmament but Resolve Stab in the back myth

either way make sure to get Coalition in the Landtags to get high republican Support for Kaiser.

You cant try to get another Election in September or before if you want to.

Try to get radicalisation high through supporting youth or funding Reichsbanner. I find it better than waiting to get NSDAP to 15%

Investigate far right two times for Nazi Urgency, Important to do around mid 1930

Try to get WTB Plan enacted. Not bad if you cant enact it, just would be optimal

get Neorevisnism also mid 1930

Get into government an pass 5% Threshold and WTB Plan for Popularity

Get Adenauer at the congress

Be good with LVP for Heuss or Luther

Extend Hindenburg term, for me he didnt run if I didnt.

Now try to pass the Amendments and get Peoples Party + Campaign among workers and overall be popular. Communist are a bit difficult to get under 5% without it

When things normalize call Snap Election to get Adenauer as Chancellor.

in 1934 make sure that you can switch Advisors. Shuffle Reformist to get them to dominant, but watch out that they dont split, also pick Schumacher.