not being sarcastic or nothing jim, but you could have a £20k engine freshly rebuilt mate and rev the nuts off of it and kill it on the way home
the builder is still going to say it's not his fault ain't he

change the quadrant sooner rather than later, because you wil only have to replace the clutch if you don't

and no, no manner of wedges or whatevers will be able to help solve the problem in the meantime as there isn't enough leverage on the clutch fork itself from the pedal
you've only got x amount of movement from the pedal unles you put the different quadrant in

if it's that much of an issue and you've got no one else to do it, bring it round ine and i'll point you throught the who proccess, i'd do it myself but my back isn't what it used to be

it's a 10 minute job to change the quadrant, it's just everything else to get it done thats the pain in the arse