Biglurr54

I have a 2002 Foreman 450es that just got new tires and a good going over! I'm starting to trail ride with it now here it was used for utility around my house before. I have noticed that the springs have sagged a lot. I ordered a highlfter 2" lift to get some ground clearance but I want to regain the suspension travel. I am a big guy at 275lbs so when I'm on the quad, she sits pretty low. Ive seen spacers you can put in to increase tension n the springs. I have also seen Highlifter springs but cant find rears for my model. Whats my best options to regain a stiff suspension and gain some ground clearance? The old girl kept up with a new cf moto and scrambler 850 trail riding the other day. Everyone was amazed by the old girls ability. I just need a little more ground clearance!