I played an Electra just like that last year at a local store--just happened to be the wrong end of the month, LOL. But it was really nice, before then I had never seen an Electra 335.
I made up for it last week--I was out cruising thrift stores last Saturday and stopped at a store i usually don't see anything I like. I looked in their used room and back in the corner was an Electra--body painted black with a brush, but the neck was stock with little fretwear, price? $40.00.
It turned out to be an x290 with two stock Magnaflux pups, and sound pretty close to P-90's stock, though I might still try my pickup if I don't need to do much carving.