I've never dealt with slee. But, they've got a lot of respect from people on here. Give them a call, discusss everything you want done to your cruiser and they should set you up in the right way. They'll most likely recommend a medium duty suspension kit if you're going with a steel bumper + winch and rear bumper. I think the hd stuff is reserved for overlanding and really heavily equipped rigs (100 or 200kg+ constant load).
I'm still stalled out on tires. I have 4 Rock Warrior rims. I need another one for my spare. More $. Then I need to choose some tires. More $. Then there's that TPMS thing to decide on and buy. More $.
I'm getting one of those Frontrunner Slimline roof racks too. More $.
Christo offered me a bumper that was in his warehouse that had a few blemishes on it at a discounted price. He delivered the job on time and on budget. His guys were all super nice. They gave us a mess of free tee shirts, too!