Hey guys. It's my first time posting here. I'm mostly a novice 1:35 scale armor modeler but by some stroke of luck I was able to purchase 4 1/72 kits for around 4 dollars each for a total of 16 Dollars (converted from our local currency). The decals for all but one of the kits were already damaged due to their age and the clear parts sprue had one or two parts knocked off but placed inside a tissue paper to secure them. Still, the rest of the kit looks okay and complete. I was wondering if I could get some help with how well are the following kits are made and what should I keep in mind while building them (as again, this will be my first time putting together an aircraft)

ESCI Phantom II F-4 C/J
ESCI Phantom II F-4 E/4
ESCI AV A8 "Matador" Harrier
Italeri Sukhoi SU-34/32

(The few reviews I've found from the 90s say they're relatively fine but I don't know if they still hold up today and how easy they are to build)