We use a long set of needle nose pliers with a 45 degree bend. Have never had problems putting the fuel line or the vacuum line back on unless there was a routing hangup somewhere. Never even saw a need for the quick disconnect on any of the three Valks in the herd.
Exactly what gunslinger says,,,,,,,, When mine had to be replaced, we added 3" to the length to alleviate that problem, except it creates another problem.
It is called kinks in the line..... So you are cursed if ya do, and cursed if ya don't.
Just be patient. Ya get flustered and then it justs gets worse. Walk away, do something else, come back and it will just fall on.