CNC Kitchen tested PLA up to 265 °C or 270 °C in a couple of videos, for example
The plastic (it may depend on the brand) holds just fine up to 250 °C, but (from personal experience) bridges become really difficult to tune. Strength is very good.
ABS can be printed properly starting from 235 °C (depending on the brand). At 235 °C layer adhesion may be suboptimal, but you are mixing it, so it's not obvious that the result will be poor.
So, to summarise you have a common range 235-250 °C where you can print both plastics properly when pure, so it is reasonable to think that by mixing them you will have at least the same temperature range (the bottom may even be extended a bit, as it happens with PC-ABS which prints properly colder than pure PC).
So I would say that it is a worth test with likely positive results.
In fact, ABS-PLA blends exist and are very good blends for industrial use as the Terrafilum site states:
Strong PLA Industrial Grade PLA with superior flow and
strength performance; designed for parts where PLA is desired but
where the parts will be subjected to repeated use; ideal for parts
that may need bend slightly without breaking during use.