Corey
I went though AOPA insurance and was able to get 29K in haul insurance on a 1967 150G. All you need to do is point out why it's justified.
(low time engine / air frame, new paint, ect) it also helps to have an appraisal. AOPA has a good estimator on there web site
www.aopa.org [
aopa.org]
Bottom line you can get more then 20K.
You may consider a plane that needs a cosmetic overhaul ( new paint and interer) but other wise mechanicaly in good shape with little corrotion with the insturments you want (VFR / IFR). that way it will not matter if it needs to sit on the ramp for a while until you can get a hanger, then you can put the money into it to make it look nice.