well, a lot of us here, myself certainly included can easily recommend the SV. and its a great starting point. the thing to understand about the pre-spotmatic cameras is that their bodies are based directly off of the original Asahiflex. this goes for every model from the 1957 Asahi Pentax to the 1962 S1a. this is quite different than a Spotmatic on many levels and thus gives a completely different feel and overall experience in use, despite not really being vastly different than the spotmatic i overall control layout.
now, your lens was originally offered in 1957, and was discontinued that same year. that means that the most historically accurate body to use this lens on would be the original 1957 'Asahi Pentax' 'AP'. But I would strongly caution against seeking out this model for several reasons:
cost, rarity (closely associated with cost) dual shutter speed dials and a maximum shutter speed of only 1/500, dimmer less magnified viewfinder.
there are two other earlier bodies that would be a good fit, but they are more rare and usually more expensive than even the 'AP'. that would be the 'S' and the 'K'.
the recommendations you are going to get the most are likely to be the S2/H2, S3/H3, S1/H1, SV/H3v and S1a/H1a. any one of these cameras are a good choice, but some of them I think are better options than others. if you don't mind the 'Honeywell' Pentax versions you can usually save some money in acquiring a particular model (these being the 'H' models as appeased to the Asahi 'S' models.
the S2 (Honeywell Heiland H2) was the first of the 'S' models, 1959-1961. (model II 1961-1963) top shutter speed 1/500. later models have notch in ss dial for external meter coupling.
the S3 (Honeywell Heiland H3) was the second model, 1961-1969. top shutter speed 1/1000, notch in ss dial for meter coupling. new "cross areal microcosm" focusing rangefinder.
the S1 (Honeywell H1) the third model, 1961-1963. top shutter speed 1/1000 , notch in ss dial for meter coupling.
the SV (Honeywell Pentax H3v) the fourth model, 1962-1968, top shutter speed 1/1000, top plate mounted self timer (the first model to include a built in self timer) self zeroing exposure counter, improved back door lock mechanism, later models featured a modified aperture diaphragm to accept the takumar 50mm 1,4, notch in ss dial for meter coupling.
the S1a (Honeywell H1a) the fifth and final model, 1962-1968, top shutter speed 1/500, exactly the same as the SV but lacking the self-timer and 1/1000 shutter speed selection.
all of these models have similar focusing screens, but changes were made throughout the series. the introduction of crossed diagonal lines in the micro prism focusing in the S3. the fresnel focusing around the micro prism was enlarged from 8 to 11mm in 1964. the early screens are darker but I find them easier to focus without the microprosm center such as on the SV. user preference though I suppose.
my 0.02, for what its worth, is that the best choice is easily the SV. it will give you the same look and feel of the period correct body of this lens, but give you all the advancements made throughout the series leading up to the Spotmatic. no compromises, the best of both worlds. early Pentax look and feel, more modern Pentax engineering. you can also track down an original Pentax top mounted meter and not have to worry about the need for a hand held meter or going without. plus, that 1/1000 will come in might handy since most of todays films are faster than what was typically used back then. and you get the only body with a self-timer if that matters.
here is my SV and Takumar 55 2.2 (also a standard lens for the 'AP' from 1957)