Topband: Single antenna port xcvr but want to employ separate receive antenna

[James Rodenkirch]

Have my vertical working great and have a small Delta-loop low band receive antenna BUT the Ten Tec Jupiter doesn't have a separate receive antenna like a K2, for instance (I borrowed a K2 to try out but the buttons/controls are to small for me to operate as I have a severe case of peripheral neuropathy, courtesy of Agent Orange).So, I am up and running and will be in the CQ 160 contest at the end of January but have no means, currently, of switching rapidly 'tween the top loaded vertical and loop. A T/R switch won't "do it" for me....so looking at a DX Engineering RTR-1A but sure don't like the price!!http://www.dxengineering.com/parts/dxe-rtr-1a
Anyone have an RTR-1 or 1A that is excess to their needs and willing to sell OR have another idea of how I can employ a separate receive antenna when I have one antenna port?
Thank you, in advance, for any replies....off line replies work for me.
72/73, Jim Rodenkirch K9JWV