I don't know if someone has covered this already, but if you're like me and prefer to cheat at the Mansion Repair and Party Planning mini-games to give yourself an easier time, you can use the console commands below (also useful to avoid mods).
Mansion Repair
mStatClean = [100,100,100,100,100,100,100,100,100]
mStatBuild = [100,100,100,100,100,100,100,100,100]
mStatWork = [100,100,100,100,100,100,100,100,100]
mStatSalvage = [100,100,100,100,100,100,100,100,100]
mMoney = How much money you want
The first four will give every DIK max stats, which means that you'll be able to repair every room by assigning just one DIK per room. The variable for money becomes redundant as you'll easily earn enough money for the windows anyways, but hey, if you want to give yourself unlimited money, go ahead.
Party Planning
Here, you'll still have to think a little bit for the placement of the items, but the following commands will give you every single major perk and unlimited money, which should make the placement extremely easy.
Pink Weiß (Beer doesn't need Cups to activate): pp_icons_limited_dependency_list[0] = ""
Finger Food (Food doesn't need Trash Cans to activate): pp_icons_limited_dependency_list[3] = ""
Jello Shots (Liqour doesn't need Cups to activate): pp_icons_limited_dependency_list[5] = ""
Connections (Reduces the cost of Drugs by $3): pp_price_limited_list[2] = 1
Wholesale (Reduces the cost of Kegs by $3): pp_price_limited_list[4] = 2
Black Friday (Reduces the cost of Speakers by $2): pp_price_limited_list[7] = 1
Crowdfunding (Increase the party budget by $4): pp_extra_budget = 4
DIK Party (50 % extra bonus score from activities): pp_bonus_multiplier = 1.50
Ease to Please (Receive 20 % extra Happiness for each fulfilled need for every DIK): pp_extra_happiness = 1.2
Hard to Let Down (Unfulfilled needs lose 20 % less Happiness points for every DIK): pp_happiness_penalty = 0.8
Multiplier Madness (DIKs with at least 50 % Happiness adds and extra 0.1x multiplier per fulfilled need): pp_multiplier_madness = 0.10
Below Budget (Save up to $5 for the next party budget): pp_below_budget = min(pp_money,5)
pp_money = How much money you want
Note: The major perks you add (i.e., the ones you didn't legitimately select) might reset between rounds, so it's possible you'll need to re-enter them for the next round.