Under 400e light weight amp for small gigs

Hello everyone and sorry in advance : this is another "what amp should I buy thread"

I'm looking for an amp that should be light weighted and allow me to do "small" gigs as in a accoustic guitar + singer + "not too much drums".

I have my eyes on the fender rumble 100 v3 (100W, 9,9kg) but I can't find any on the second hand market so I'm wondering :

- Should I pull the trigger and buy a new one at 370e ?

- Is there anything in that price range that will offer me a good sound and still be in the 10kg range ?

- Should I not "waste" money on a 100W and aim more for a 200W or something ? I don't have a band, just playing with some colleagues right now so I'm not even sure I'll gig with it appart from in front of our coworker on a lunch break.

Thanks a lot for your answers and sorry for another amp buying related thread!