I wouldn't go much higher than like 8-10mm? lest mechanically, definitely no more than an inch for me anyways...
how are you wanting to achieve this rear ride height lift?
if the shock is not sprung for your weight the proper shock might help?
if not dog bones and or an adjustable ride height shock is all I really know of mechanically?
had the same issue with mine and I always reverted to using a 180 rear tire with a high profile like a 180/75 felt like I got around 3/4" with a 180/75 whatever over the stock 200/65 set and it was sharp as a scalpel, always went with a complimentary front tire with a lower profile like a 110/60 or 55 .. if ya can find one, matching of course, nice rounded profile steering is very stable, grounded and sharp, steered in very quick this way, out not as quick but very workable..... Dragons mostly, DOT
always loved brand new 180/110 set for this reason, the flat spots make for dogged turn in for my style..
ground down side panels with that set up in the past.. you can drop the nose by like 8mm letting the forks up all the way till they hit the top clamp plate, if you're at stock setting, spring forks for weight if possible...
also you might look and see if you can remove 2 links to shove that rear tire all the way forward? maybe you manipulate the sprocket sizes to accommodate the chain if its too tight afterwards? I used to do that as well, helps if you can shorten that wheelbase, any amount helps really, a new chain perhaps?
bout all I know, prolly other ways?