How about set up as an array with part of the system on each of several ships strung out in a line?
You’ve got a lot more ships than I do.
You can do anything if you have enough money. The Navy looked at SWOTHR (Surface Wave Over The Horizon Radar) which would put a longwave radar on a single ship. One difference was that ROTHR uses ionospheric propagation rather than surface wave and therefore has a minimum range of about 500 miles. SWOTHR would have good sensitivity against low observable (stealth) but not much accuracy. Short wavelength radar can detect low observables if they know where to look. The low accuracy SWOTHR could cue a high accuracy conventional radar which would then only have to search the SWOTHR uncertainty volume. E.g., SWOTHER tells you he’s between 10-30 bearing and 10-15 Nautical miles, the fire control radar would rapidly search and acquire the target with enough precision to put a weapon on it.