converting elect to hyd stablizer jacks

I been told that my Auto Elect jacks leveling are no longer support with parts. So I need to convert to Hydraulic system. I like to buy a good system since I will be paying to have it installed. Any suggestions I been told Hwh has a good system but after calling the sales department person, he is overwhelmed with this problem and was very rude and short he could not recommend a model for me so I could research? He told me to contact a Rv service and I'm traveling in Oregon.