Thanks for all your answers.
I just wanted to check if the guys was over-charging, and indeed a bit, I've tried the UPS online quote link. And the cheaper options "standard saver" is about 80 euros for 30kg, not 130 euros.
Also, I've not shipped heavy stuff for a while and prices did gone up crazy, french post (La Poste Colissimo) is 84 euros for 30kg inside Europe. That used to be around half or maybe "only" 50 euros.
Regarding the utility of such an old spectrum analyzer, it is sold as not working, with the analyzer module looking powering up. It's really for the fun of the repair and experimenting with. The service manuals are available with full component level schematics and theory of operation. On the RF side, there may be some unobtainum parts, but other than that, it should be possible to obtain the needed part(s).
But I agree that something like TinySA (or any "cheap" SA that does the job) should not be dismissed. With appropriate knowledge, I guess some serious work can be done with it. It's not so much about the quality of an instrument/equipment as the capabilities of the user to make the most of it.