ill second the post above.
yep you can bump start it, just some quick turns on the adjustable slave cylinder and you're good to go.
Rekluse also retains full clutch control, although the lever pull is harder than OEM ktm/husky.
No added maintenance, except for maybe adjusting the slave cylinder ever so often (super easy) and aslong as you install it correctly it won't give you any problems.
as mentioned above it can prevent stalls towards the end of a long riding day when you get tired and you loose technique, on a snowbike it's also an added bonus of being able to get off the bike in gear and pull the front ski while giving it throttle and hopefully getting yourself out of a trench.
i wouldn't recommend the rekluse for a beginner, learn how to master the clutch first, i also wouldn't recommend the rekluse for newer 2 strokes as their clutch pull is so easy it's not needed IMO.
doing a new snowbike build this year that is similar to yours & i decided to run the rekluse for reasons above... besides, i get plenty of clutch action on my 300 on the dirt.
Do you need one? ... no, not at all
Will it make the already super fun ride even better? ... hell yes