Kerrowdown has very expensive tastes as evidenced by his glass collection costing about 8 times what my truck is worth.
Here is sorta what I went with.
Buy a Super Program with an A35-105 F3.5, that combo will cost less than $200 and will cover most film photography with just that one lens.
The Super Program is the best Pentax film camera aside from the LX and the LX only beats it because of its amazing light sensor. The Super Program can be had for less than $50 and the LX costs usually around $400 in good working condition lately. It still has easy to use full manual controls and the old style quality metal body and handy things like a depth of field preview lever and many auto features. Get a cheap but really good AF280T flash for it too as the TTL makes them work perfect together and you can use that flash on a DSLR in a different mode.
I bought a brown body K1000 SE just as a collectible though I do use it for its wonderful simplicity. Lack of 2000 shutter speed that the S.P. has kinda sucks since I like to stick with 400 film.
Adding the A70-210 F4 which can be found surprisingly cheap will give you longer reach, and adding the A24-50 F4 which can get pricy but still under $200 will give you width. There really aren't any other Pentax manual focus zooms worth owning.
Which primes you buy is up to you if you want the extra speed in any particular range.
I would suggest sticking with A series if you want to bounce between film and digital as they don't require special fiddling around for metering when stuck on a DSLR so you can conveniently use the front and rear dials. The beak that most Pentax bodies have in front of the flash does a spectacular job of obstructing the aperture ring so its nice to be able to just leave it on A. Keep in mind shake reduction doesn't work quite right with manual focus zooms because you have to tell the camera the lens focal length when you turn it on and then its immediately wrong when you change zoom, works fine with primes though. Pentax A series primes are constantly climbing in price now however. My only prime is the A50 F1.4 that came with the Super Program originally which I love for its speed and focal length on film (on crop sensors its too narrow).
For digital I bought a used K5 for $390. DO NOT go with anything older than a K5 no matter how cheap it is, the K5 was a shocking night and day improvement over my older K20 in basically every way, but mostly in the fact that ISO 3200 looks like ISO 800 did on the K20D. If you want better auto focus get a K5 II or newer (K30 like you suggested is a good budget option).
I can't think of anything really cheap in the FA or newer stuff that is very good, but if you like primes the FA35mm F2 makes a wonderful crop sensor version of the classic 50mm (similar field of view as a FF with 50mm) and you will also be able to stick it on the film body though the focus ring isn't as nice as a true manual focus lens.
I got an 18-55WR kit lens used for $100 in like new condition because with a crop sensor you basically have to have something that wide and I wanted at least one WR lens to use with the WR body. Really great quality for a kit lens, but slow on the long end and not the best quality at 18mm. This is the only lens I have that is a crop lens.
My other AF lens is a full frame one and its the Pentax FA80-320 F4-5.6. That gives me the reach I need for birds at 320mm, but the lens was dirt cheap in price which is good because its really only of adequate quality and is best used stopped down a fair ways. Its still better than most of the other cheap 70mm-300mm range AF lenses out there.