If you're looking for a wheelchair rental option, it doesn't seem that the temple has such a service. If you're visiting the temple using a wheelchair or with someone using a wheelchair, however, it seems that the temple (and the area around it with shops and cafes) are fairly wheelchair-accessible. With some exceptions (such as the steps to enter the main temple building) it's easy to get around the area with a wheelchair, either with or without assistance. Also, there are "barrier-free" toilet facilities at the bus stop. Jindai Botanical Garden, which is near the temple, does offer a free wheelchair rental option, though you can't "reserve" one in advance. The park is also mostly wheelchair-accessible, with wide paved pathways.