I'd just invest in a longer hose. You might have to prime the hose, if your existing hose has a pump you're starting the siphon with you'd just want to fill the hose from the outside end to the one way valve in the pump (assuming you've got what I think you have). A siphon is a siphon, the hose could be a mile long as long as the far end is below the water level in the tank, just getting it started might be tough. I once siphoned my tanks with a 100 foot hose, that was tough to get started... I swallowed a mouth or two of saltwater accidently that time.
The utility pump and a longer hose mentioned earlier is probably the easiest way