Cheap substitute board for Stratix 10 AX RF Board?

Stratix AX is the FPGA with ADC/DAC and ARM processor. I am looking for a Intel FPGA with the same ARM architecture and low cost. For example Cyclone 5 has ARM architecture and has low cost Development board. But Cyclone 5 is a very old FPGA. The reference designs are using very old version of Intel Altera software. Stratix 10 AX is a new part and reference designs for this part are using relatively newer version. My end goal is to find a platform which I can run the same software versions and use the same ARM architecture like Stratix 10 AX ARM architecture. The boards given above are from Stratix 10 family but they are not from SOC family with ARM processor and They are High End expensive boards. You stopped production low cost FPGA with SOC after Cyclone 5. Is this true? Is Intel's only low cost FPGA with ARM architecture "ten" years old Cyclone 5 FPGA? Or am I missing something?