There's a problem with that. The proposed 1:1000 single-stage probe requires a parallel compensating capacitance 1/1000 of the total scope-plus-cable capacitance, which is likely to be in the order of 50pF, which implies a compensating capacitor of 50 fF, or 0.05 pF. across the probe series resistor. This is probably impossible to realize.
The Tektronix 1:100 HV probe used a special "leaf-and-collar" capacitor of a few pF, across the 100M probe resistor, which is taking things about as far as they can go, and still withstand the voltage gradient across the resistor. The capacitor dielectric was Freon, rather than air, giving a higher dielectric strength. Freons have a permittivity of around 2, which helps as well. The probe actually had a load of 100K at the scope end of the cable, not just the 1meg/22pF scope input, giving 1:1000 ratio. Compensation adjustment was done at the scope end of the cable, as is ubiquitous in higher-end probes today.