I have been thinking about this too. What I've read says 4-6 reps, 3-5 sets, fairly heavy (80% 1RM). Don't need to do many different exercises, squats, deadlift, lunges and calf raises.
Get an Electrical Installation Condition Report.
if it comes back as unsafe it's hard for the seller to argue against negotiating the price of a rewire.
He's 32km ahead of Jakub who has been stopped for 6hrs