Yes, principally it is possible to install /e/ for a5y17lte dev (nougat) - but with extreme caution if your device come with StockROM 8.0.0 Oero!
Either install a stock 7.0 rom before installing the official /e/ build for that phone or use the unofficial build from @Unknown - the issue has something to do with the radio firmware: you cannot mix oreo firmware with nougat os or nougat firmware with oreo / pie os. ©Micha.K
When an official /e/ OS version based on 8-Oero or 9-Pie will be released, remains the secret of
maintainers from the /e/OS Build Team.