Poor man's stickrake

I have a Cat D5B 98J with what appears to be the original tool bar type blade. I have hundreds of acres of cypress pine regrowth to walk down and rake into windrows. This country was last cleared of larger regrowth about 10 years ago using 2 D9 dozers with a chain between them. Pine regrowth here is very dense far more so than ever in the original state. No grass grows because of this density and this also means you can't get a hot fire to kill it. There is no point is using a chain again as the thin stems just fall over and stand back up. A sharp blade at ground level is very effective but you really do then need a rake working at right angles to windrow without pushing up a lot of topsoil. So to my solution - a walk in clip on type stickrake costing many thousands or I make my own. Note this country is only being used for cattle grazing and will never be cultivated again. I was wondering about welding rake times onto the removable blade cutterbars. Bit time consuming changing the cutter bars over I know and I wonder if I could make them strong enough by just welding them onto the length of the bar face which is the usual 8 or so inches. I will live with a rake that is only the length of the blade is 3 metres or 12 feet and I can do without the angled wing extensions seen on the big rakes.
Thanks for any suggestions or feedback
Ian

how big is the regrowth ???

If you get a set of ConnorShea Giants and just disc it back in you disc fairly big stuff in ok with them and you will be able to pull them easy enough they chop the trees and scrub right up a lot I feel like the Rome ploughs people talk about on here

Paul

Stick rake on Gumtree at Kempsey NSW that's suits a D5/ track loader that may suit. Search Cat dozer.

Thanks guys. Have decided to buy new 14 feet clip on rake delivered and fitted for $13300. Measure up Monday 3 weeks to delivery.

http://www.gumtree.com.au/s-ad/kempsey/heavy-farming-agriculture-equipment/10ft-stick-rack-d5-track-loader/1086932002