Originally posted by Driline Gee, I can't wait to buy a full frame pentax camera for $2,500 and put a $25 FF piece of legacy glass on it and expect great images from it
To be fair, the OP is looking for a pair of used lenses having good value for money. While the "stack o' primes" hyperbole might be excessive for the F 35-70, I think that many users would agree that the lens offers good value for money, albeit not "great" IQ relative to certain modern (i.e., non-legacy) lenses. Nonetheless, it -- and other "legacy" lenses -- can be acquired at a very low cost and they offer decent optical performance. No, not "great" performance, but well-regarded. The DA 18-135 seems to also fit the "good value for money" category in the minds of many users (although it's not legacy glass).
The OP also listed several examples of possible lenses for consideration, in the range of 50-240 Euros. Budget may be an important consideration.
I don't think a lens should be dismissed simply on the basis of its price. Otherwise, we'd need to recommend to the OP a
minimum price that should be considered in order for a lens to be worthy of mounting on the new FF camera. I think there's room on the mount for high-performance contemporary lenses as well as the legacy (or dare I say, vintage) glass.
- Craig