Crossed the Border today from Honduras to Nicaragua.
Stayed the night in Danli (Casa Encatado - has WiFi and very cool and hot showers - sorry for offtopic)

Honduras site - El Paraiso:
Quick and Easy - did go to Immigration (office is labled and easy to find) - got a stamp in the passport - go to Vehicle Export (did cost 60 lempras) - the lady did something with the passport - finish
was quick and easy - no copies at all !!! -
total time: 15 mins
total costs: 60 lempras

Nicaragua site - Las Manos:
after crossing the first rope - immigration office on the Nicaraguan site (all offices are on the right if you come from Honduras) - got a entry stamp in the passport
go to Vehicle imigration - got a form filled out . need to find the inspector (was wandering around with a t-shirt with intalian flag - didn't look offical but the friendly truck drivers assured that he is the right guy) he signed the papers while looking on the bike from some distance (it rained) - back to office - the lady said if i would miss the document on exit it would cost 10 US-Dollars (very important document) - said Ok - and Bon Dia and was rewarded with a smile (she looked very harsh at the beginning).
no copies at all!
total time: 35 mins
total costs: 300 cordobas

Did miss the insurance ? don't know if it is needed - but will go to costa rica anyway tomorrow.
And did send away the lonely helper on both sites (No quiero guia)

All in all - nice and easy.