I think there are a number of things you could do with a little ingenuity.
The 230f version has more suspension travel, yet appears to have the same size forks. Search for some ebay parts it looks easy enough to do a transplant. Even it you do not want to do that, stock or aftermarket springs can be cut to length.
I suspect the bike has damping rod front suspension, a simple change in oil viscosity can make the forks better.
I have a cheap source for rear springs, . http://www.eshocks.com/hyp_make.asp
Springs are measured by their inner diameter.
I own a KLX 650C. Imported 4 years and no aftermarket. I changed the oil weight in the forks. I could add spacers to get proper sag. I could search for another spring from any KTM with 43usd forks and cut to length.
Turned out the oil change was good enough.
I grafted on a Showa shock from a DRZ 400, resprung and revalved it. So much better than stock. My bike has a big bore from Germany at the time. Too much sag in the rear? Make/shorten the suspension links. It raises the rear and increases the effective spring rate. 5mm shorter links from a 2010 KLX 250s worked on my bike.
It looks like BBR has big bore and high compression pistons for the F version, can't be that different.
You have fuel options. http://nomadtanks.com.au/
You just have to look outside the box. It is time consuming, surely there are site specific websites for your bike. Maybe some one has already invented the wheel.