Trillium 4500 jack and front-mounted bike rack

[Toby H]

I have a 1976 Trillium 4500 and would like to change out the original rusty swing jack for a new set up. I'm hoping to find an electric jack or manual front-crank jack with a short drop post that I can mount a 'Jack-It' bike rack to. The Jack-It rack mounts on top of the jack post and can hold 2 bikes in front of the trailer. The set up won't work with a swing jack though. The other catch is that there is only about 8-10 inches of clearance from the tongue to the road, when hitched to my Mitsubishi Outlander, in a neutral position. Any ideas on jack models that might work?