Found a construction description of a 1:9 unun with a FT114-61 toroid that
spans several bands. Will try this setup with a low pass L-C matching network
since it will have very low losses. Don't know how long the link will stay
current
but here it is (it is in German but the pics will give enough information).
http://www.technik.ba-ravensburg.de/~lau/beverage-unun/beverage-unun.html
The backup plan will be to build an S-Match and then use a Guanella 4:1 output
unun for matching the lowest impedances. According to some information the
losses in properly build Guanella are low and it can handle up to a 1:5 SWR.
73, Marinus, ZL2ML
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