There is NO better flight time than glider time. The skills make you a much better power pilot. Ask the cadets at the U.S. Air Forice Academy. Ask Captian Shully.
Be aware that there are pilots that have their "licenses" issued to them from other countries because of medical reasons. Check Flight Standards to see which countries.
They accept my current NZ license and medical.
You don't have to plan the return. In flying you plan the legs to a destination. The return flight is another destination/another flight. Relax and try not to overthink, you'll do fine.
Having Flown to Elko many, many times whn flying Bank Checks in a Seneca find a
nice loooong runway to set down. Watch for flocks of small birds along the runway that like to get airborne just in front of you on landing.