the only real way is to take the plunge and find, thats the only way you will know, shorten the forks with a spacer?
hmm unsure what you mean there?
engi forks, are manufactured under an agreement with KYB, using a larger lower fork diameter then 33mm (gpx) and even 35mm (marzocchi) i beleve they are around 39mm-38mm and around 780mm long, they are a well built fork,
less stuffing about, all youll need is a different triple clamp, 48mm-48mm clamp and you can install it right in your frame, and obvousily the right axel and spacers to suit, then your laughin, but still wouldnt bother, you can get a braaap pro factory with a daytona for a bout $1200 these days,